My man doesn’t wanna give oral

Ok so I’m a divorced mom of 2. Almost 30, and am now engaged. Every relationship I’ve been in before the guy has always loved going down on me. I have such a hard time getting off during sex, and have been open with anyone of the past. My fiancé knows that too, but I fake a lot and finish later. I literally beg sometimes for it. He will if he’s drinking and feisty.. but when really texting about it, he says it’s just never been his thing. Anyone else have this issue??