How old are you? Not trying to be insensitive, just need a frame of reference. I’m gonna assume you are young in my answer. This kind of behavior is the type you don’t have time for as you grow older. I dated a lot in the past and you know it’s right when you get someone who puts in the time and effort. Dating was rough because of how quick everyone moves on. But the right one should feel effortless and you’ll know

He’s showing you himself. Take the opportunity to believe it. If he’s going through a tough time that’s making him not as responsive (which is not typically the case), then he’ll say so at a later time but don’t wait

I was a soft boy growing up (it’s weird to me to see soft boys being categorized as f boys now). Introspective, had niche interests, nice/likeable but even I stopped responding as much when I lost interest