Please help me walkthrough my feelings

Hi, I don’t really know how to start these things so here it goes. I am A. A little bit background about me. I have started my masters last year and I started late as I worked for 2 years after my bachelors hence that’s why I’m kinda the eldest in my friend group. Not a big difference just a year or two. There is this guy in my group lets him Y(21M). Him and I clicked right away and it was never friendship click. We always had this chemistry and sexual tension between us. The only downside, he is three years younger than me. We started chatting a lot and we flirted a lot too. We shared our pasts with each other and what we wanted in future. He has commitment issues and I got out of a break up so I wasn’t looking for a relationship either and so one thing led to another and we kissed.

We have kissed, sexted and actually had sex too. Multiple times, it’s kind of like the best sex of my life and we enjoy cuddling and then just chatting away in each others arms(TMI I know I’m sorry) We have gotten so deep into this thing that we talk all the time, we say “I love you” to each other and just basically do everything that you do in a relationship. He is sweetest kindest person ever, he is fun and cute and hot too.

I feel like we are getting serious for this and ofcourse we have no future together. It’s ofcourse more than a situationship now. We are loyal for each other and it’s like everything but with no names.

Once in a while he says that maybe I should think more about getting a guy who I can have a future with but then he will do a 180 and say no it’s fine what we have now. He keeps saying that whenever you wanna leave you can just tell me before so I can be prepared. I love him too much to leave him like that but this keeps getting me thinking that what if things go bad and I will be heartbroken again. My last relationship wasn’t really good. Too much crying and long distance issues. This guy makes me happy. I am genuinely happy and my friends have noticed it, I have noticed it and it’s sweet.

Plus I see him getting serious with me and I genuinely feel good about it but that’s the point, we have no future. I suggested him that if he is actually getting serious for me or if he thinks he can get into a relationship, then maybe he should start things with someone who can actually be with him.

There are times when I joke about him being my bf and he freaks out. He recently showed one of his guy friends my pics and the guy didn’t really have an opinion for me which is fine cz I am not really hot or good looking type. He told me this but he also added that he told the guy that if he sees me in real life then I am really good looking. Now I love that he said that to him and I am not really hurt that his friend doesn’t have an option or he doesn’t like me but it just makes me feel that I’m not good enough for him.

I don’t know how to think about these things or what to think about. I still have a year of studies left and I wanna be with him but I don’t know I guess I just want him to be my bf or I am just overthinking everything. Maybe I should see how things go? So what am I feeling? It’s not really a AITA but I need help…