What can I do to turn him on

I’ve been dating my boyfriend for almost 7 months we never had sex cause he has erection issues not sure why but I feel like he’s scared he’s gonna loose his errecyion woth me and embarrass himself and disappoint me. He’s ok with our relationship the way it is without sex but I want us to start having sex I love him so much and I want him to try and explore eachother and make it better! I want to ask him straight up what turns him on mostly and what are his fantasies maybe I can do that for him but rn he’s going through a rough patch he has to move to a different house and he has midterm and he has no time for anything and he could be moving out of the city which might break us up! Any ideas on how to turn him on ? We talked about trying and he’s like we could but it doesn’t matter to him if we do or don’t I don’t want to leave him