Newly single

I (37f) dated my partner(42m) for 2 years, we had a great relationship. Moved in together 8 months ago. We had discussed marriage is vague terms but no timeline. It’s a must for me but I knew he was reluctant about it from the beginning. I was still hopeful we would get there, love and all that ya know. He finally admitted last week that he never intends to get married. It’s a hard line for me so I packed my things and moved back to my own house a couple days later. I still love him deeply but can’t stay with a man long term who won’t protect me with the security of his last name. We both still want to date but I think it’s a horrible idea. Feeling really lost, not sure what to do now. Definitely not in a mindset to even consider looking for that husband who is so important that I blew my whole relationship up to find.