Do you get offended if your partner cant cum?

There’s been a few times where my boyfriend couldn’t cum and he always says it’s not me. But I can’t help but feel kinda offended but maybe more so embarrassed because I can’t make him cum? Like am I not attractive enough ? Do I not feel good enough?

It’s usually in the mornings . But the thing is, in the morning he will wake up with a boner and he will be the one to initiate it and with all that being said, hes the one who can’t cum?

I just feel like, if you wake up horny and if ur the one initiating the sex and then can’t cum then maybe its me ?

Like he was hard when he woke up and then a few seconds after he’s in me he goes soft and then stops because he can’t cum?

Idk I just feel really insecure now and the last time it happened was a few days ago and he hasn’t tried to have sex since. I kinda want to initiate sex tonight but I’m scared he won’t be able to cum again. Ughhh!!

Can anyone relate?