FMV, thank you for your recommendations, I will try to talk to him about it once things calm down a bit. And thank you for encouragement too, it really means a lot to me.
The thing is, he doesn't feel entitled to tell me that. Regarding sunbathing topless he just asked me not to do it in front of him. It was me who said I didn't mind giving it up altogether.
Regarding the nude/topless beach, he doesn't want to forbid it to me either. The issue is that I have no desire of going there, but he doesn't believe that. (I don't know what issue he has with me not being open since he clearly knows me better than myself. Ok, sarcasm off.)
Accept that there is only one thing you can change in life and that is you