She denies any sexual activities, say it is no going to happen and say it would be weird to have sex with her friend. She described kissing him as the same as a nice caress. She fully believes in the open relationship idea (can love more than one person, monogamy is a social construct that makes us unhappy). She has asked me to imagine the worst about their relationship and learn to cope with this. I guess either she is being honest and her kissing him is just an strange way of saying she cares about her friend and I have to learn to handle the jealousy and anxiety or she is a selfish manipulative dishonest person who is wanting to get away with having an affair and keeping a partner. The hardest part is accepting things have changed between us, the loss of boundaries and rules (existentialist crisis) and the anxiety and jealousy and threat to the ego. Good thing there are plenty of ways to work through these things.