Confusion

Ok now last year I had a crush on a transgender person (female-to-male) and I mean I've kinda been questioning myself since then and I kinda tucked it away because i was like this person is in a relationship so it doesn't matter if I like them anyway, but know i see this person and yes they are in a relationship and I'm in a relationship but i think I still like this person a little bit but again they are in a relationship,so yeah.

Now I identify as bisexual but the definition of bisexual is " sexually attracted to both men and women" and someone told me that means if your bisexual you can't like transgender people ,so does that mean I'm not bisexual? or what

I know some people may read this and think I'm stupid for asking these questions so I just want to let you know I am pretty stupid so yeah

Well I'm gonna go to bed now

Night guys