My bf’s ridiculous double standards

So my boyfriend has this really big problem with downplaying things that bother me. If I bring something up, big or small, I’m told to grow up. I’m told to stop being sensitive. He’ll say something that genuinely hurts my feelings and somehow I’m finding that he refuses to accept fault. He’ll constantly tell me that I’m in my own head or that things shouldn’t bother me and I just need to learn to take jokes.

But if I EVER say or do something to upset him, I’m expected to be understanding and caring and to immediately apologize. He doesn’t want his issues to turn into an argument but never fails to make anything I bring up into a full blown battle. The off times it doesn’t, he’s just completely dismissive of the whole issue and wants to drop it rather than admit fault or oh idk APOLOGIZE?!

How is that fair to me that I’m expected to be so understanding but he shouldn’t be expected to do the same? Does anyone else have this issue with their partner??