I need advice ... I should know better & I think I already know my answer

This guy ... we met on a dating app & out of all guys I’ve talked to we have been talking everyday & been having good conversations. If we ever dated it would be LDR, unfortunately.

So after 3 months & having a conversation about how we felt about “us”. The day after I told him “I think I’m starting to actually LIKE you”

This is where things went ... south. He basically ... started messaging me less?

But he never said oh I’m not interested in you. He said we would have to meet to see if we actually have chemistry.

One thing is for sure he def reminds me of my first ex who didn’t know how to communicate, would be really hot & cold, always talk about himself. & cheated on me.

So now I am totally turned off because I’ve noticed this subtle change & yesterday he felt sick. He didn’t message me at all. So today he messaged me out of the blue talking some shit about himself. I grey rocked. He messaged something else later, I left him on read.

I’m 25 years old & hes 27. If he doesn’t wanna date me or do whatever then he could just tell me.

I’m not dealing with this shitty behavior so I’m not engaging.

Advice please?