<human>: Can you condense the text into a few key points?

My SO and I have been seeing each other since last August and 'officially' dating since September. He is very busy and has multiple jobs as well as being a full-time student at a very rigorous university. He is also having some financial problems and family issues so in March right after we had been together for 6 months he said he needed a break to deal with his work stuff and family stuff. I agreed to it even though it was breaking my heart. We put a time limit on it and we will either end what's going on now or we'll re-evaluate in December.

I told him I loved him in February after a huge fight and he said it back a few times but then admitted he didn't actually know if he loved me and I said he didn't have to say it back if he wasn't sure, and now he hasn't said it back since. 

This break that we're on is kind of a we're still dating but not really kind of thing. We still see each other occasionally just to hang out or watch a movie and we're still having sex somewhat regularly. The problem is that I'm really starting to question whether or not we should still be involved at all right now because it mostly just makes me feel undesirable.

All his life stress is constantly present and he'll be distant or seem irritated and I'll ask if there's anything I can do but there isn't and then he gets irritated when I ask. I still tell him I love him because I do but I'm getting more and more unsatisfied with our current status. I guess I just don't know what to do. I'm not sure if all of this made any sense but if you have any advice I'd really appreciate it.
<bot>: SO and I are on a break of sorts with an expiration date but mostly it's making me feel shitty, helpless, and undesirable. Help :(