Many thanks for the info- I feel like I'm definitely doing a lot of detachment now and 180 things! It has helped me immensely to feel more in control of the situation and my life. I keep wanting to message him/ call him etc but I stop myself every single time, I have not done that for over a month. When I see him he just doesn't look happy, he looks unshaven, puffy eyes, thin so I just don't get why I'd he seems so unhappy that he doesn't say anything! The last few times I've seen him, he has lingered around as if he wanted to say something but then didn't, I didn't ask either as don't want to instigate any conversation about us but it so so hard!
He has been taken over by an alien and this is part of the script.
Let go - you did not break him and can not FIX him.