cumming too fast

So lately it seems like my boyfriend is having a hard time lasting very long in bed and even he has acknowledged it. Because of this, I haven't really been enjoying it as much because right when it starts to get really good he pulls out. Well tonight I think I accidentally hurt his feelings because I said "no no" when he pulled out and I tried pulling him back 😅 He offered to use my vibrator on me but I said no because I know it wouldn't get the job done aaand he hasn't spoken to me since the incident. Is there something that can make him last longer in bed?? I have the female version of blue balls right now and I'm dying!!! 😂