Lost. Need advice processing my feelings in this situation.

Hey all,This is my first post here, but I'm not really new to the topic; I've been having gay thoughts and fantasies since I was 13/14, and up until now I had no experience whatsoever.So, right now I'm in college and there's this dude who's a year above me. I faintly remember him from going to a few meetings of this LGBT-related group on campus. Since then, he has talked to me on a few occassions, mainly during dinner; nothing big, just small topics like housing, classes, and other things.Last week, he initiated another small convo with me, and out of the blue, he asks if I want to walk with him through the nature trail. We exchange numbers afterward, but it wasn't until he asked me if I wanted to come to his apartment for dinner that I suspected it. Still, I went along with it, surprised that someone had an interest in me.Within the next two days we make out, and end up losing our virginity. I felt a bit shitty due to my lack of performance and erection, but very much enjoyed the intimacy of showering and cuddling afterward.Truth be told, I try my best to avoid him during the day. I find it awkward that there's someone who knows me literally inside and out, and due to how the sex went and the fact that I still know little about him, I am not really sure how I feel. We have cuddled a few more times since then (somewhat sexual), but I can't really find the nerve to say "I love you" without feeling some sense of obligation to do so. Despite the fact that we probably will not be together that long (me studying abroad next semester and his being a senior), I don't feel 100% into the relationship. It's primarily due to personal and aesthetic reasons that I can explain further, but I find that I rather not think of him during the day.My apologies for the vent/biography. Am I doing something wrong here? Do I come off as aggressive and unattached? I just don't know, especially as I'm also concerned about keeping about other people finding out, which seems like a dick thing to say but I'm still closeted and come from a violently homophobic culture.