Sounds like the ass hat completely deserves the ‘ex’ part. It may well be he didn’t know how to make you cum, rather than denied you. Either way, sounds like a dick.
I am very sorry for your loss, of orgasms. Please believe me when I say I’m a huge fan of them, but for some women (I’m about to hit 900 followers in just a couple of months of being here…) the idea of a guy knowing how to make you cum but keeping you aching, wet and denied is as hot as fuck. But if that doesn’t float your boat, never a problem.
I hope you have found someone who can make you cum a dozen times a day – you deserve it.