really guys, i need some kind of input on this please! ): ive been freaking out !

so ive really been thinking about this all for awhile now, nd i really think im a lesbian.. but the thing is i have a boyfriend and i LOVE him, but im almost positive im a lesbian.
i WANT to be with a girl.. and when i see two girls together i just think its so cute ! plus my moms gay, nd ive always wanted to have what her and my step mom have together.. i always just thought it was just the love between them that ive always wanted but im starting to think its more than that..
i have done more things with a girl when it comes to foreplay (still a virgin) but when it comes to my boyfriend he's doing everything because i just am not comfortable doing anything.. ive done sumthings once nd it just didnt please me, i was bored when the whole time he sed he new it had to be pleasurable for the both of us.. but i was bored nd it was awkward.. but when ive done things with girls its fun for the both of us. and i just cant see myself losing my virginity to a guy.
i have always dated guys tho.. ive been in one real relationship with a girl.. ive had crushes on girls alot and when i know a girl is bi or gay i tend to show off or flirt with them..
but i dont know if im just bi.. or if i really am a lesbian /:
my boyfriend always tells me that he knows im bi but he thinks im more straight than anything, that he couldnt actually see me really being with a girl. but my mom tells me she thinks imma end up with a girl in the long run..
i just need help figuring this out.. i dont want to string along my boyfriend and hurt him in the end if im a lesbian (which i think i am.. maybe) or lose him nd hurt him to go explore and find out that i really am just bi..
gahhhh, advice ?? please !!

 

but there is no sexual assualt or anythingg..
nd i know for a fact i like girls, always have.. i just think its starting to become more powerful i guess yu could say than liking guys..