Left alone by my cancerian love, after a fight.

Left alone by my cancerian love, after a fight.

I am a Scorpio girl, with little anxiety issues, with a cancerian man. Its been 2years the relationship started. I have dated a Scorpio and Gemini man in the past, and both didn't go well, with obviously lots of faults in my side too.
2 days before me and him had a fight. Usually when we fights, I tell him I don't want to continue the relationship, but he never accepts it. I also don't have any intention to stop the relationship when I say like that, I just do that to grab his attention and concern. But this time he really said he don't want this relationship and left. The fight had some sharp words come out from my mouth, which I am sure hurt him. From then, I am blocked in whatsapp and I also didn't try to contact him any ways. I would say due to my anxiety issues there are many negative contribution I am not fully consciously giving into this relationship and I just feel that he has reached his tolerance level. I don't want him to be by my side and suffer.
one thing, he has got no idea what anxiety is, and he haven't even bothered to know about it more. I have mentioned to him many times, I have anxiety. Both the families know about this relationship, and yes we have already decided to enter the marriage phase, soon.
I really don't know what to do in this situation