Meena dated Dave, who she is living with when Steve meets her, for about four years. During their relationship, Meena cheated on Dave with a random guy she met at a bar, saying that she was pushed to because Dave is so "perfect". Dave forgives her, and she ends the relationship.
She felt that Dave was only dating her out of charity, and kept waiting for him to realize that she was not good enough for him.
Meena is ethnically Indian.
Steve first runs into Meena on the street while he is talking to himself, having a sort of emotional breakdown. The two have lunch at a nearby restaurant and Steve asks for Meena's number; she refuses, and instead takes his, saying she hasn't made up her mind about him just yet.
After Steve meets Dave, he is troubled by his and Meena's past, and the fact that the two still live together
Steve and Meena end their relationship when Dave proposes to Meena (to which she accepts, citing that they are meant for one another).
The last we hear of Meena and Dave is that they are happily married and trying for kids.