@lilypelie,
I think it's a lot more reasonable for you to tell him that it's over.
Why?
Because even if he didn't want to leave London, he could have framed it in such a way as to be respectful of your feelings. And before he tries any nonsense about saying that he "didn't know" you didn't want to go out and you wanted his support, that's a load of crap.
Srsly, you have to be a big time inconsiderate lout to not realize that someone who has just lost a (nonabusive) parent is going to be, oh, I dunno, not the party animal you want them to be?
He had a chance to step up or at least be sensitive. He's been and done neither.
When people show you who and what they are, believe them.