"I just find it so hard seeing someone i care about so sad 😔"
I know.
It is hard - sad for what could have been, sad for the good times, and sad because you are fully conditioned and used to caring about him.
But the truth is you can't make him feel better now. You just can't. You aren't the right person for him to be talking to to help him support himself through this. UNLESS you go back to him.
And all the time you are in contact, this will be his aim.
And being sad will make you vulnerable.
This is why it is best not to be in contact with him. Not to be in constant contact with his being sad.
He did this. And he will not change. So you cannot go back unless you willingly sign yourself up to a life of misery and abuse, walking on eggshells, tables overturned, walls punched.
So, don't speak, block texts., and under no circumstances see him when you are alone with him.
I do know it is hard, and everyone here understands - tea and cake being sent,
You took that lifeboat - keep rowing onwards!