[Mantis rolls the glass between her fingers, shoulders hunching a bit under what she perceives as a disappointed frown.]

I tried. When we all first arrived, we all lived together. You and me and Rocket. It was just-- There was a lot of-- It was loud and-- [Okay, she's totally failing at everything right now and she finally blurts out a complete sentence in absolute frustration:] I don't know how to live with people!

[She sucks at social things. She knows it. She knows it intimately.

And then she feels the need to defend herself, because don't be disappointed in her, Peter.] I still spent time with you both. I brought you dinner sometimes. And-- and I really did try to help when they wanted you and Rocket arrested for the bombing.

[A slight pause, then ruefully:] I didn't do that very well, though.