Why doesn’t oral feel good?

Me and my boyfriend have been together for 7 months. We’re 17. He’s my first for everything. I lost my virginity to him in November, but I’m not his first, which doesn’t bother me, he is experienced, I’m not, but he has always taken his time with me and has taught me things. The sex is good for me, him fingering me is good, but when he tries to eat me out, I hate it. It just doesn’t feel good at all. Since he’s the only guy who’s ever touched me, idk if it’s just me? Or if he just isn’t very good at it? I’m not the first girl he’s went down on, but maybe I’m the only one who’s been honest about it? He has added fingers before, which made it better, or if he kisses on it that feels nice too, but other than that it just feels weird. It’s to the point where he doesn’t even try to give me head anymore because I’ve told him it doesn’t feel good. Is there anything I can have him try? Or any reasons why it doesn’t feel nice for me?