How to bring it up
No matter what, do not say, “I don’t like” or “This doesn’t feel good” or “I’m not into this.” Use positive words. Say what it is you do like, that he’s already doing, and find a way to relate those to new things you want to do, or changes you want made. Start small. Don’t give him a grocery list in the first conversation. Mention one or two things, when he does them give him great feedback, and then over time bring up the other changes you want. But you have to make him feel successful, to make him feel confident about trying new things.