A partner that brings you down?

I don't want just 'break up' replies. It's harder than that. I do love him.

I am and try to be a fairly positive person but my boyfriend is the opposite. He's very pessimistic and often down/depressed, feeling like he is a useless waste of space but not doing anything about it.

I'll be honest, he brings me down. I might be all happy ready for my day but then he will be grumpy and refuse to go out and do something together or he might even say something a bit mean and I end up just spending the day on the sofa.

I don't want to break up with him. I just want to be happy. My anxiety already holds me back a lot but he does too. I just wish he could be happy and productive and want to do things. He wasn't like this at the start.

And I don't think he means to put me down but he often talks about attractive girls he sees at work (hes a bar man) or girls he works with and how they have big boobs or bums (i am very small in both those areas). He will say afterwards that he likes my body too but by then its already got me comparing myself.