he cums too quick

I feel bad bc my bf cums really quick and he thinks he might have premature ejaculation. I love him and when he goes fast it feels soooo good but it doesn't last long. It usually only lasts 1-3 minutes and I feel bad because he thinks he's disappointing me but he's not. It just kind of sucks that it's not as long as I would like because it leaves me still horny with a lot of energy.