please help! my Boyfriend can't make me orgasm

I have been dating him for over a year now and its a problem and it's upsetting. I feel like he's selfish when it comes to sex because even though I never orgasm he still only wants to have sex when he wants to have sex not when I'm in the mood. I've talked to him and I've said that I need clitorial stimulation but when comes down to the deed he does nothing extra and it just ends in disappointment. Ive bought a cock ring that vibrates but that didn't work either. I don't know what to do I love him we have so much in common and he's my best friend he makes me laugh every day and is always the first person I go to when I need to talk or help or comfort. Is it selfish to leave  someone because they can't make you orgasm? Should I leave him because he can't make me orgasm? Please help 🙏🏻😔