The feeling of not being good enough

Anyone else go through this from time to time? Just curious to see.. during sex my boyfriend kind of fell out of the act and became soft, now- the bedroom got extremely hot, he was on top for sometime and got tired. He has been sick with stuffy nose and has a cold and a tooth ache- not feeling well (I know my poor guy :( ....) I just want an option of is it me or is he just not in the mood because he doesn't feel good?

I hate when he doesn't finish and then gets soft. Makes me feel like I'm not doing my job