Did I do something to offend you? An observation from the straight white friend involving the LGBT

So I’m a straight white male, 21 and on top of the world. I dress pretty casual most of the time, very masculine energy as well, aka no makeup, or anything that might make you question my orientation really. I’m in a very liberal college and I’ve made a lot of friends in the LGBT+ community. When we go to public my queer friends have no troubles, however sometimes I feel a really negative vibe from queer people when I’m in their presence. I can almost feel them making these assumptions made about me just based on how I dress, or how I talk.You cannot deny the straight guy in the room stands out if the room is mostly LGBT+. And usually not in a good way.I feel like I get hate because I am a confident in my sexuality, but I like to be involved community. I get this feeling people are just not okay with me being a room sometimes just because of my sexual orientation, (correct me if I’m wrong there). Sure you can say it’s because I won’t ever get it, but what exactly am I missing? Does my sexuality make you uncomfortable?It really rubs me the wrong way to be honest, it’s not like I’m some close minded punk...just trying to chill the fuck out and avoid bad vibes. Help me figure it out? I want to be able to talk to everyone in a room.