If he responds does that mean he cares or he's just checking

Ok It's been about 4 years since we were together we dated in HS so obviously a lot has changed. We were neighbors and I'm currently moving back to the state he lives in. I've posted on Snap a picture of Rihanna and its like when you've learned from your past self and I've posted about guys hitting on you at Walmart and just random stuff. He has a gf now and I believe he was dating her back in October. In October I pasted something from a movie and he wrote what happened. I told him and he said if he was there he would've beaten the guys ass. In Jan or Feb I posted the Rihanna picture and commented how being kicked out was the best thing to happen and just the amazing lessons I've learned. He commented and said you were kicked out and we messaged for a bit. Also before he got with his GF he knew I moved to WA and have tattoos. She's from WA and has tattoos and just every girl he's been with has a lot of similar qualities to me. I know it's in the past and I'm working on getting over him. Been in rebound since then and I'm staying single. Just confuses me