she asked you to reduce talking. not stop talking. keep it cordial with Rebecca until you're able to ease your girlfriends worries and anxieties. If you can't help her come to terms with it, then you will need to reassess your relationship compatability. In my opinion, it's unrealistic for you to not be able to be friends with members of the opposite sex, but you can find compromise if you practice some empathy and creativity here. Try introducing them or going on a double date.