The big O

I’ve yet to meet a man that can do anything for me in the bedroom. I have been split up with my daughters father for a little over a year now and started seeing someone new 4 months ago. I told him about how I’ve never got off during sex and he didn’t really seem to care. He’s 4 years younger than me - and says he’s never got a girl off before in the first place. I literally don’t even want to have sex sometimes because it’s over just as quickly as it starts and I’m left with unfinished business every single time. What do I do? Is this enough reason to want to break up with someone? I know sex isn’t everything... but dang...