I have no idea what’s going on and I’m having a hard time figuring it out....HELP!

So like I KNOW I like boys and that’s for sure cause dick.....yes. I’m in college now this is like my second year and NO this is NOT an experiment type thing. I have come to some sort of conclusion that I’m totally not against being with a girl sexually or relationship wise but everytime even think about the shit like REALLY think about it I punk out and say that couldn’t possibly be what I really want. Like I’m not necessarily attracted to a girl where I see one so beautiful and I just know yea...that’s her, I want her. It’s more of like a “wow she’s super cute and I think I like her but what is this feeling. 😫 I AM CONFUSION AND HAVE NO ONE TO TALK TO ABOUT IT. I mean there’s my roomate and her girlfriend and their always inviting me to join them like...ya know....join them, and I can’t bring myself 100% of the way to do it. Her girl tells me all the time that I know I want to so just do it and she’s right but.....I really can’t do it......what’s going on with me ☹️