Is he embarrassed by the 15 seconds?

I hooked up with this guy for the first time and it was a really fun time but he only lasted 15 seconds each of the two times we actually had sex. We made plans for later but he flaked. It’s nothing serious but some of his friends think he’s embarrassed~ he joked and called me a succubus while I was there with him but kept apologizing for not lasting long.

He’s left me on delivered for 6 days even though we were flirting previously, any advice? I’m just confused 😂
Is he embarrassed by the 15 seconds?
Post Opinion