Could someone else act as a go between?
I read it takes in average 7 attempts for a woman to leave an abusive man (many probably have kids with them though, which makes it harder).
So it's fairly normal that you've taken a few times.
If he's put you in hospital, this behaviour is presumably escalating though; so it's extremely high risk to go back.
Re the "love" - is it love or is it a trauma bond? Is it a dopamine etc addiction to the "highs" (note that the highs only seem high because lows are so bad).
There are a lot of chemical processes going on on your brain in relationships, especially a relationship like this. The oxytocin alone, which affects women much more than men, is a major factor
The only thing that halts those is no contact, distance and time.
You could also do with some counselling.
Some new, absorbing hobbies and activities would also help. I remember going through a very stressful episode with my sister and her then husband and I defaulted to thinking and dressing about it continuously; until I went on a sports type course for my birthday. It required learning a new skill, was very demanding and tricky and a little bit scary; and I did not think about the episode once in a week.
Sometimes you have to break patterns of thinking.
New people, places, learning new skills, doing new things really help with that.