Hey twinkle *hugs*
The dance continues huh? Abandonment, engulfment, rejection. It's as classic as a waltz.
Picture this a bit like a seesaw. When you're on a seesaw, your stability depends on where you are situated. When your partner jumps off, you hit the dirt. He's jumped off and you have plummeted. Now playing on a seesaw might be fun in the park, but it's no way to have a healthy relationship.
I know it sounds easier than it is.. but find your centre, your balance, no matter what he does. It means not reacting to your own feelings of abandonment, thoughts of unworthiness or guilt.
This quietness from him is designed to draw you back in, to continue the dance. He probably doesn't even realise he is doing it, but that doesn't matter.. as long as you do and you stay balanced.. after all, his behaviour is his responsibility.
You cancelled because you have commitments this weekend. That's good, because you have something other than him to focus on. Focus on them and more than ever, make you your priority this weekend. It's ok to miss him.. it's natural.. but don't make missing him the only thing.
I know it's hard babe.. but you're doing fine.