ROCD and support from boyfriend

Don't continue reading if topics about ROCD trigger your obsessive and instrusive thoughts. Stop, take your time and breathe.
Only a few days ago, I had a massive breakdown. The honeymoon phase ended, my friend ghosted me, my depression got worse and I experienced ROCD for the first time in my life.
It's the scariest experience of my life, and it's only been 4 days. I'm still struggling so much with constant doubt, constantly going on Google, and constantly trying to ask for reassurance.
Last night, my partner told me "You can break up with me if that's what'll makes you happy." and I did. But even with temporary relief, I still felt pain. They were severely hurt and I told them that I'm not ready to make a decision like this in my condition. We aren't broken up anymore, but they are more patient and understanding with me now. And I apologised for being so spontaneous.
Now they know about my ROCD and are asking me how they can support me. I told them to act as they are. Their love for me is a trigger, but I don't want to push it away. I want to welcome it and let those anxieties pass through my body.
However I do have a question, Are there other ways my partner can support me through this?
I know no relationship is the same, but learning about different kind of approaches might help.
I can write so so much about how much I'm suffering, and how much pain I'm feeling at the moment, but I'm trying to stop myself from that.