I know this is long but please take the time to read, I really need advice!
My boyfriend has depression, and may have done for quite a while but he was only diagnosed last week.
When we were first together he used to give me a lot of sexual attention and it was great. He used to make me orgasm all the time and enjoyed doing it, yet he made me wait a long time before we had actual sex because he wanted to be sure I wasn't going to 'run away' afterwards.

Once we started having sex, he carried on making me orgasm using his hands and did this before sex, as I can't orgasm through penetration. However this began to tail off. For the past few months he has been having a lot more orgasms than me every week e.g 6:1. I know it isn't a competition and I love pleasing him, but I can't help feeling dissatisfied. I give him lots of sexual attention and he just doesn't seem to want to give it back any more. When he does, he doesn't seem as into it as he used to be and he gets frustrated that it takes me longer to reach orgasm (but I am only struggling because I know he doesn't do it as often any more, so I put pressure on myself to make the most of it!) and now that I know he gets frustrated about time, it makes it even more difficult and so he seems to be doing it even less. Its become a horrible cycle and we never used to have this problem!!!

I'm hoping that the depression is the reason that this began happening but I am sceptical because of the fact that he is still interested in sex and having orgasms himself.
I feel I can't bring it up because it'll sound offensive and selfish, especially as he is so fragile right now. What can I do to find out the reason and to help get things back on track?