can't make my man cum

Mia
So I'm a virgin and don't want to have sex until I'm married but I've done everything else. But I get super irritated when I can't get my man hard or make him cum by a blowjob. He says it's because he can't get fully hard or cum unless he's having sex. But I want to do that to him and it makes me feel insufficient and like I'm falling short because his ex could make him do all this shit because they fucked but I can't.