Chris is jealous of David having married a good, faithful woman and his successful family and business life. this is the driving force behind his interest in Anna. it helps that she is a goddess. he is only deluding himself into thinking he has a chance with Anna because he is fooling her into thinking all he is wanting is friendship. she is oblivious to what he really wants. but the bathroom scene where he grabs her ass should make her see he is not the harmless loser she thinks he is. hopefully now Anna will begin to suspect Chris being involved in setting David up as a cheater when she calms down and starts to think rationally. having Chris send her those photos is a perfectly logical reason for Anna to think Chris is a part of setting David up, so on the save the marriage route, Chris is going to get his just rewards from Anna, which is blocked number and at least a restraining order as well as David beating the ever living shit outta him once he finds out what his good buddy is up to. #IHATECHRIS