Long distance Relationship struggles

This shit is kinda personal to me but I haven’t been able to talk to anyone about this. Soo I have a bf, we’ve been dating for about 3 months and we only see each other once a week. And I’m scared that it’ll just end like all my other relationships.

And the thing is that he gives me bigger headaches than my own family. I break down and start crying when I talk about some serious stuff and when he laughs and says shit like, “it’s a joke” I get pissed. And I’m sick of it. And I’m ignoring all these red flags being waved repeatedly at my face because he makes it all up by saying 3 words.

I love you.

And it kills me to even think about the day that we break up, lose feelings, or the day I come to realize that he’s a shitty person playing a victim in his own perspective. And I honestly don’t know what to do. Either try and work on it, give him space or stop being obsessed with him? It’s like sometimes I don’t even know what he’s thinking anymore because he’s always tired from school and work and I can’t do anything about it because I barely get to see him.

I’d rlly appreciate it if I got some strong advice on this, thank you.