I think that as soon as you give Alice the body suit you're no longer on the "pretend to be friends" path. I chose that path (or thought I did - had a deal with Eric, he was letting me watch him and Ann, I was informing him about Alice's blog, all with the intention of undermining him) but after giving her the gift, Eric would no longer deal with me. Since the alternative to giving is to let him give it to her, and then it seems you've lost Alice to him, I can't see any benefit from pretending to be friends.