I'm not able to finish

With my bf we've been together for 8 months and he still hasn't got me to finish I'm very attracted to him and so happy but I just can't we've tried man positions and he's ate me out before but I can't, like I feel everything like I have the urge but when it comes down to that point it's hard. I have used toys and masturbation alone and I can finish alone but not when we're together help? Are any of you ladies the same? He's told me he dosent feel good enough cause he can't make me or he feels less of a man... I tell him it's not him I think it's just me cause I've used other toys