Mixed romantic orientations? Advice

I am writing to get some perspectives on how folks in mixed romantic orientation partnerships work? Im currently in a discernment period regarding my situation. My former partner and best friend and I dated long distance for 2 years. We've been friends for almost 30 years. At the beginning of October I decided based on relationship dynamics that I needed to de escalate as I wasn't feeling aligned. We took space and as part of that, I am realizing he is likely aromantic. I am not.

I am currently digging into why romance feels so central to my idea of an anchor partner (solo poly here). I miss our sexual dynamic and over Christmas we spent 10 hours talking on the phone for the first time since October.

I suspect there may be some autistic traits in him and my ADHD gremlin is currently chilling, luckily. I understand that my trauma brain may be putting too much weight on romance and gestures.

How do others navigate this? I know I can't expect everything from one partner, but now, I am trying to decide if his version of love (platonic/sexual) is enough for me.