I know this might be a bit strange but your H sounds a bit like me! He makes these grand announcements to get a reaction but then actually realises its not what he wants! So the no contact thing is a great example.
The work invite thing is a bit strange too. Again he's making lots of announcements about what he is or isnt willing to do. Maybe you should go back to him and say 'great if you can come. I'll meet you there'. If he's like me, I bet he'll stay for the whole evening!!!
Me - 47 H - 45 D-16 M - 6 years Separated - May 16
Don't leave me behind can't you see me I'm shining... (Years & Years - 'Shine')