Would really appreciate some advice from anyone at this point but it has to do with break ups and secrets.

Ok, this might be long but this has been absolutely killing me to my core. I am a 21 year old male who lives away from my family in college and I might be screwed and I’m scared as hell. Sorry if this is poorly written; I am shaking with anxiety right now. I am a closeted gay (mostly gay). Like to the point that I don’t see coming out as an option for a long time. A long time…. I understand that is unhealthy but it is just my life right now while I am under my very homophobic family’s roof.So heres where its honestly a potential disaster and I am so fucking scared right now I don’t know what to do. I have been talking to this guy for the past couple of months and its been great. but now a few family members were curious one day and well it was proven at that point that it would tear the family apart by the way they reacted. The guy is amazing and we’ve been talking for a little bit. been sexual a few times. But now its hit me that if someone found out I would absolutely not be mentally ready and be destroyed inside and by the ones im closest to.We’ve even gone as far as to say I love you.Right now I’m so scared now that its ruining my life with stress, and I need a way out of this relationship without crushing this guys heart and/or him doing a revenge thing or something like telling everyone. We don’t know each others friends. He’s really nice and one of my favorite people in this world. As far as what I am worried about is that sometimes he gets a bit emotional. nothing more than just being short with me or something similar, but it does happen sometimes.I’m dying for a nice way to ask him that he never tells anyone and that he has to promise me. And worst of all, that we can’t talk anymore. I know a lot of people will hate me for having to do this and yes I hate me too for it. I am going insane right now.I already might cry right now and when I talk to him, but I just need a direction to go instead of just bawling to him. Ive been gone for the last month or two and have been back for a little over 2 weeks, so that also worries me about him being upset.Once again sorry for my poor writing I’m just dying for an answer. Basically I am terrified right now and would love some advice in any way possible. How do I tell him we can’t talk anymore? Right now I am so scared I am shaking while I type this.