His upset is about the convenience your relationship was on his time, on his schedule.
He may indeed be very upset.
You accepted crumbs for a long time and that really suited him.
He's disappointed that you have pushed back.
You were the good enough for now girl, and that really suited him.
Men do this all the time, right up to moving in with women because it suits them.
I have a 26 year old son.
One of his very social friends has moved out of home, post university and grad programme, into his first well located little two bed nice apartment in a city with his 2 year girlfriend.
They are sharing costs.
He had zero interest in a shared messy house with 3 or 4 lads.
This girlfriend is really nice my son said but he's not very serious about her.
So she's moving in with him, and he's using her as a housemate.
Awful. But it happens.
As you can imagine I have told my two daughters about this.
Screw being used like that.