Well the main point of my post is in the title. I'm really, really concerned. Me and my boyfriend have been arguing a lot this weekend over something I am sure I was in the right about, which he finally apologised for today. He went out drinking last night and stayed out till 4am and woke up this morning extremely hungover. I was a bit hard on him this morning and said he had better treat me really well for the next few days because he owed it to me - he's been quite disrespectful lately, swearing at me if I try to bring up a minor problem, etc.
But anyway we made up and went out for lunch, but in the end he wouldn't eat anything and just had a pint as 'hair of the dog'. He looked like he was about to cry so I asked him what was wrong, he said uni work is getting him down and he doesn't know what he's doing there and had tears in his eyes, looked awful, so we left the pub and came home. I thought we'd have a cuddle and he'd have a little cry and I'd comfort him - this is what usually happens when we argue, as he can be quite sensitive.
But today we came home and he refused to come near me. I tried to ask him what was wrong, as he was crying his eyes out but he refused to say or have a hug. Eventually he just said 'I've been feeling so sad for weeks but just hiding it, I'm so so low, I'm so sad all the time'. I said 'Is it the relationship? Is it me?' and he said 'maybe. I don't know what it is', but eventually he said that it's just EVERYTHING. I tried to give him advice and a cuddle, asking him if he would like me to go to the doctor with him tomorrow if has been feeling depressed for weeks, or telling him now that he's talked about it he might start to feel better. But he refused to even look at me or let me cuddle him, which is not like him at all.
I am devastated because I thought we were back to normal and now he's like this. We have had a shit time the last few days, so I'm sure that contributed to why he feels so bad, but we made up. Also the last few weeks, while he has been a bit less affectionate, he hasn't been acting particularly weirdly or like he's sad - but he says that he has been feeling very sad inside. Yet he has been hiding it well as he's been out with his mates a lot.
Anyway. Now he's left the house puffy-faced from weeping and says he doesn't know when he'll be back. He's taken his laptop and phone. Now obviously I'm sitting in our flat crying my eyes out with no idea what the hell to do. If he does come back... how do I support him? Should I just completely leave him alone, if he doesn't want my help? What would you do?
Please help. This is pretty new to me and I have no idea what to do. We're both 20 and have been living (I thought happily) together since last summer.