Which Teen Titan Is Your Soul Mate?

Raven is one of the most mysterious characters throughout the series. She is quiet, emotionless, studious, and sarcastic. She can always come up with a witty remark, specifically in reply to most of Teen Titans' antics and attempts at humor. Her appearance and attitude appears to be that of a typical modern goth female.
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Beast Boy, plays the role of the lighthearted jokester of the group, though he is often the butt of many jokes or backfiring pranks himself. He is playful, energetic, and often immature. When the other Titans are focused on important details he is usually the first to break in with a preposterous suggestion or an unnecessary joke. Due to this, others sometimes view him as immature, thickheaded, and cumbersome. However, he continually proves invaluable with his kindness, quick-thinking, and battle prowess. Although he jokes most of the time, Beast Boy can be serious when he wants to be.
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Cyborg is a very outspoken and fun-loving character
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Cyborg eating meat
who likes to enjoy life, especially since he found friends who consider him a person, not a freak. He likes to enjoy playing video games, tinkering with technological gizmos and eating. He also tends to be stubborn and has had some serious arguments with Robin in the past, but he does make a capable second-in-command in Robin's absence. He also frequently bickers with Beast Boy, mostly about the latter's culinary taste and habit of misplacing all manners of personal items, though the two entertain a close friendship. He takes on the protective big brother role to Raven and Starfire, getting quite upset when they get sad and tries his best to comfort them when he can. He hates losing battles, especially to seemingly insignificant opponents, and has been known to display emotions of anger (which he often takes out on his friends) frustration, and becoming depressed. What emotions he feels, he feels deeply and passionately, but he also has a mature head on his shoulders at times, shown partly in how quick he is to forgive Terra after her sacrifice.
Maybe Cyborg's replacement robot dressed up
One facet of personal vulnerability is Cyborg's great personal pride in his inventions and constructions. For this reason, he tends to foster an immense dislike for anyone abusing his technology for selfish reasons, especially Gizmo and Brother Blood, and to be overprotective of his most personal projects, like the T-Car.
source: teentitans.wikia.com

Robin is a natural-born leader. In DC Comics and other incarnations, Robin is even toned and playful despite some outbursts of rage; such as when he learns of his parents' killer and when he eventually stops working as Batman's sidekick (a situation that is mentioned in a roundabout way in the episode Go!). However, in this series, Robin is closer to Batman; serious, stern, strict and obsessed with hunting down criminals, which is most prominently displayed in the first season, where he goes so far as to masquerade as a villain to catch Slade.

Out of all the villains the team has faced, the one that is most hated is Slade. Robin will stop at nothing to defeat Slade. Robin insists that the two are nothing alike, despite Slade's claims to the contrary. Several encounters with him have lead dangerously close to causing rifts between Robin and his friends. Robin must put aside his fixation on Slade and put more trust in his teammates if he wishes to resolve the threat.
source: teentitans.wikia.com

Despite her beauty, Starfire is joyous, naive, and somewhat insecure, but her naivete is not to be mistaken for stupidity. An alien and an outsider, she is still rather new to Earth and its customs. (For example, she did not understand what a boy meant when he asked if she was "diggin' the scene" when she was at a party, and stated, confused, "I did not know we were supposed to bring shovels.") This leads to much confusion for her and others, such as the awkwardness in casually drinking mustard as a beverage, and thinking cotton candy and cotton balls are the same thing. She takes friendship very seriously, and is easily distressed when others, especially her friends, argue or fight. Starfire is particularly indignant to the point of snubbing her teammates when she believes they do not care for her friendship or company. She is arguably the most social of the Titans, regularly meditating with Raven, or lifting weights with Cyborg. Above all, she wishes to be friends with everyone she meets, and for everyone to get along.
source: teentitans.wikia.com

Terra started out as a shy and quiet girl but was immediately liked by everybody. Terra is quite insecure. She wishes to do good with her powers, and her determination to gain control of them is evident, but her lack of existent control usually proves them to be a danger instead of a benefit, thus making her reluctant to use them. Before Terra became a Titan, this lack was very evident and surfaced through her weak control over her powers and emotions. She had tried to put up a front of confidence, but was actually extremely afraid of people finding out how unstable she was.

Among the Titans, she is closest to Beast Boy. He feels he knows the most about her and so is the most understanding towards her. She told Beast Boy she couldn't control her powers and Beast Boy still welcomed her. At first, she gets along well with all the Titans except Raven. Later, Raven develops a respect for Terra. After her return, Terra seemed to command much, much more control over her incredible earth-controlling and manipulating powers and capabilities. Beast Boy wanted to go on a date with Terra and she gladly accepted. Beast Boy and Terra are both happy and fun-loving
source: teentitans.wikia.com