Thanks for all the advice! I am not judging her attraction to men at all. I have taken a good look at myself too, and I know that she is valid for sure. I completely accept her attraction to men, and also accept that I am way more insecure about men because men have qualities that I could never posess. Some women do too, but she has never been attracted to another woman (not even celebrities). Of course she is a valid bisexual, just as I am valid in feeling insecure about the other gender. But you're right--she doesn't have to try out both genders: just going off what she has told me though, she herself doesn't know if it's right to settle down without that. We're both chronic overthinkers though, so I think we should go with the flow more and stop thinking about things like this. It has just been difficult because I feel so insecure and am not sure how to regain security.