Why does it have to be this way? Is it Over?

I've been dating this guy for 9 months and everything was going great, until recently. We have been fighting over everything. We live 30 minutes away and its a whole mission for him to see me, but he manages to come when he can. Recently he got a job, and today I see him adding all these girls. I ask him about it and he makes a fuss. He then says bye. Later on , I text him a really cute message. Apologizing for earlier & he tells me that he's not gonna buy it...... We decided that we are going to break up after the next big fight. I am trying not to start one, however it seems everything i do is wrong. Without him I feel like i can't breath! I don't wanna lose him. What should I do ?