Is seeing my POA again a relapse?

I have been working really hard lately on getting to know myself, I read "Women who Love too Much" and I'm going to therapy, I also started Al-anon as my POA is an alcoholic. I have been setting clear boundaries and I was no contact with him for about a month. He hit rock bottom during that time and I refused to be there to scoop him out of it like I used to do. I went no contact and stuck with it, he even went back to his toxic ex for a place to stay because he had no one and nothing. After this, he wanted to get sober, he has been for 3 weeks now and reached out to me to acknowledge and apologize for what he has done as a result of his addiction. I thanked him but also shared that I am also actively working on myself and my recovery. I told him I am no longer letting his mistakes and his addiction affect my life because I have my own obstacles to work through. He recently relapsed and I did not get upset or let it affect me. I told him to just keep working on his own journey and I am going to focus on mine, that maybe someday we'll be in a better place for each other. Now here is my question...we both still care very deeply for each other, there is a lot of love there and we share a lot of commonalities, like bizarre humor no one else gets etc. Do you think having communication with him could be detrimental to my personal journey or do you think it is okay as long as I set and maintain my boundaries. For example, the day he relapsed, I told him it was not very attractive and if he would like to talk to me he could not be drinking. I explained to him that I have boundaries now that I intend to uphold if we are going to be in contact. He respected that and tried again the next day. It's very hard to know what the best path is here. I love and care about him but I don't want to fall back into the same patterns. I also know he has lied a lot in the past as a result of his addiction, so it can be scary to trust him. So far he's been completely up front with me, even about the hard stuff. So I have hope but I don't want to let it consume me again like it once did.