Oh my. This sounds like the beginning of a disaster to me. I dont know what will help. I will say, please consider if you are really going to fulfilled if you limit yourself this way.
Using myself as an example; I am bi. When I married my husband, I didn't agree to never being with another woman again. I haven't dated another woman since we married (almost 15 yrs) because I haven't met the right woman, but, I could never commit to denying that part of myself if she came along.
I love him. But I love myself too.
"Love As Thou Wilt"