It’s hard to tell what’s going on. Being upset over kids is normal. Looking at himself is weird unless maybe he has some OCD or something. Not responding to messages might be just being busy or distracted or forgetful. Or could mean something else. How often do you text? I dint always respond to messages and texts especially if people text too much.

I have to say that you should listen to your guts. What do your guts tell you? Finding all the doubts now might be a sign that your guts are telling you something. It could be that your guts are telling you that you two don’t connect on a deeper level. Not yet or not at all. Now you are subconsciously looking for things. Or maybe you just have to continue observing longer and paying attention.

What strikes me though is that you are uncomfortable asking him questions. I’d probably ask what’s up with not responding and what’s up with mirrors? He might have good answers or his answers would tell you what’s going on. Ask him?

Ps Be careful comparing this guy to your ex. Your ex set the bar pretty low. Try to look at a new guy without comparing