Both me and her are 21, university, Europe, been together 1.5 years, open relationship. Mindblowing sex in the beginning, things settled down now. Rules are simple: both can flirt/make out with others, can only fuck after permission.

She sometimes texts with a guy from class. Total douche, 0 fucks, ripped, only talks about fucking her. Degrading sometimes. She obviously likes it. Hasn't had sex with anyone else yet. I have. Question is: how do I provide the same kind of excitement when we've already been in a relationship for a while and there is a new (interesting) guy in the scene? How do I compete without being a douche (since I never act like that anymore)? Possible solutions I've thought about: focusing on myself, getting in shape too, talking to other girls more.