<human>: Can you give me the gist of the text in a nutshell?

This happened just a couple hours ago and I feel awful and super embarrassed. 

So, my ex and I broke up about 2 months ago. I had lost my virginity to him and he was the only guy I had done anything sexual with (oral, fingering, etc). I started seeing a new guy just a couple weeks ago and today we did oral stuff for the first time. I was laying on the couch and he went down on me and it was amazing and I was getting really into it, moaning and talking and all that (I'm quite vocal during sex). At one point during my moaning, my ex's name slipped out...and their names are not similar at all. 

It took me a second to realize what I'd said and I wasn't sure if he'd heard it but I immediately tried to cover it up by saying something along the lines of "oh fuck [*insert correct name here*] you're so good" and loudly so he would definitely hear that. He acted pretty normal after but he's not the type to confront awkward conversations so he may have heard it and is just keeping it to himself but it's eating me up inside!
<bot>: moaned my ex's name during oral with my new guy; I'm not sure if he heard but I feel awful nonetheless.