You made your own drama, and are just as guilty of ignoring his feelings.
"darkest moment of your life" just reiterates the fact that you are overreacting.
Events from his side: He tried to spend time with a friend, he changed plans, and offered to invite you.
You didn't say how you replied, but you could have gone and had dinner with both of them. Guessing you were already whining about being ignored.
He went out, had a good time, and fell asleep only to be woken up to angry messages. It is not gaslighting to feel it's unreasonable to be woken up with disrespect. If you were concerned, you would feel relieved that he's okay.
He apologized for forgetting to call. This should have been the end of the story.
He hears from you again, all anger, and he was told to go home. He took that advice, then gets yelled at again.
Hours later while still doing what you asked, you start harping again about the same shit. He reminds you that he's apologized already. What more are you looking for if he already apologized, and has listened to (put up with) your harrassment all day?
Later, you start annoying him with the same shit, and you ignore him when he tells you he needs space.
You lose your shit and expect him to drop everything to deal with your tantrums. He declines as he has already explained that he needs space.
You lose your shit even more, and he avoids the shit storm because, as he already stated, he needs space.
Pretend for a moment that you went out with a friend and fell asleep before messaging him. How do you think you would feel getting woken up (probably hungover), apologizing, then sleeping for a few more hours only to get yelled at again. And again. And again. And again.
TL;DR - Your mental health is no one's responsibility but your own. Sounds like some co-dependent issues. - If someone apologizes for something, it usually means that they heard you and understand why you're upset. Move on. - The entire issue is based off you having an unrealistic expectation of your bf asking, "How high?" When you say "Jump".