if for some reason you don't feel anything while having sex do you fake the orgasm to give him and ego boost he obviously doesn't deserve but needs or tell him straight up that it ain't working and let him feel like shit?
Wow! That's really messed up. "An ego boost he obviously doesn't deserve." That's super cold. If you feel that your man is not pleasing you, it would be fair to make suggestions about what he can do to help you enjoy sex. So yes, you should tell him, but don't make him feel low. Say things like, "How about you try this?" Saying something like, "You aren't making me come and I've been faking it," is going to do nothing but make him perform worse because he's going to become self-conscious.