Was this just a booty call? Late night DM after months of no contact

Trying to understand why a man(25M) from a past situationship might randomly send a late night booty call message after not speaking with me(25F) for 5 months.

For background context, had a past situationship that lasted about a month. It was initiated by him(25M) after he confessed feelings for me and wanted to try to date. This was a friendship of 10+ years and I opted not to unless he was sure he was serious, knowing if it didn’t work out our friendship would never be the same and would likely not work as I know I love hard once I’m all in. However he assured me he was serious, we tried dating and ended up having sex, but just about a month later he said he opted to return to friends because he didn’t understand what dating someone with a child would look like although I directly warned him of this prior(I had a newborn). We tried friendship after but I eventually told him it’s best not to speak any longer. I had real feelings for him and I really felt used, played, not considered, disrespected. I was extremely hurt because I thought I could trust my old friend to protect my emotions.

It’s been 5 months since our last contact and I get an instagram DM-“hey” at 1:50am. Im not on Insta often and noticed after 6 days. When I went to reply he had already blocked me, so I messaged him on text message asked what he’d wanted. He brushed it off and apologized for sending it saying “hey it’s all good, my bad.”

I want to know why he did it in the first place. I’m not upset he blocked me. I blocked him on all platforms as I don’t believe he had pure intentions and will just continued to play with me and use me at this point. However I want to know what his intentions might have been.

When men send late night text messages, is it because they:

1. Were horny, and:
   ⁠A) text the person they think is easiest access and lowest effort/risk
   B) were reminiscing on past sexual experiences with you and reached out at booty call hours
   C) were thinking about/miss you and had late night or drunk courage to reach out
2. Were curious and reached out of off late night/drunk courage
3. Genuinely miss you, and wanted to catch up off of late night courage/loneliness but got upset when you didn’t reply immediately

Personally I think it was 1A and/or 1B. I just feel disrespected thinking how a 10 year friendship has degraded so much to he’d feel comfortable to reach out to me on booty call hours. It’s so disrespectful and really reinforces the feeling that he never cared and just was using me all along. Just want your opinions, thanks