Boy Advice pls

So I was seeing this guy for 2 months and the relationship was primarily sexual. We hung out 6 times, most of the time at my apartment. A few weeks ago I said I wanted a relationship rather than something casual in general in my life and he said he was leaning towards something casual but still wanted to see where things went. Last week it started to feel like he was distancing himself but sometimes when we talked it didn’t feel like that anymore like we talked about life and he would mention when we hung out that I was the only one he was seeing. But I could also feel he kind of avoided when I tried to get to know him on a deeper level. Then I brought up that I wanted to hang out outside my apartment a little more and he agreed he wanted that too and we made plans for earlier this week but then he stopped replying a couple days before our plans to hang out and I even sent snapchat the day before to see if he’d reply and he has now officially ghosted me. It kinda sucks cuz like after 2 months I would’ve expected him to at least tell me things weren’t working out for him. I can tell he’s a little emotionally immature but in all other ways he seemed mature but now I know and I’m guessing that’s why he was leaning towards something casual. Normally I don’t really mind the ghosting but it seems I might’ve caught some feelings. I want to send him a message to ask him about why he ghosted and kind of let him know that wasn’t cool because like you don’t see someone for 2 months and talk a lot and sleep over in their home multiple times and then ghost them cuz usually you know if it’s really not gonna work after one or two dates then ghosting is okay (but still not recommended) imo. Either way he’s not welcome in my life anymore I just wanna know if I should say something cuz I really want to.