Don't worry about him, he doesn't love you and he never did.
That's okay, love. He's not full of hate and lust just because he fell in love with someone else. It's not his fault, and it's certainly not yours.
It's strange, I know, that you don't scream or cry or even frown because you can't feel anything at all. It's four in the morning and you're drinking his favourite tea and trying to keep your heart beating without his name resonating throughout your chest - and you can't do that yet, but you will soon.
I know it's hard and all the bones in your body sometimes ache with loneliness - just don't think of him.
I know it's not much, but think of how lovely your hands look when you're holding your favourite mug of tea.
This is a series I'm in the process of posting that is titled "time travel" because they're mostly letters I would write people I care about (or myself) based on how I've seen things they've carried, grown through, or grieved over the past three years or so.