Guys, what do you think the guy I’m seeing feels about this other girl he’s texting?

I posted a few weeks ago about a guy im seeing- I snooped in his phone (I know it’s wrong) but saw a text chat with a girl he dated right before me. He said he liked her but she wanted something serious and he wasn’t ready after getting out of a 6 year relationship. In their texts- he told her months ago he could fall for her but he can’t fall for anyone right now. He also told her he that when felt like he missed his teens and early 20s and he just wasn’t ready for something else etc. she asked if he’d never want to be with her and he said “just not ready for something serious right now” What does that even mean? Him and I aren’t serious or official but we don’t sleep with anyone else. He did tell her in his texts he can’t see her “at the moment” because he’s “seeing someone” and hoped she understood. But they still talk! She sends him voice notes and he replies with smileys! Nothing he writes is sexual but he is very kind to her and he isn’t encouraging her to stop texting him. Upon you guys advice I asked him what she is to him- he said she’s someone he dated and he said he ended it with her because he didn’t want to hurt her as he wasn’t ready for serious and she was. And he then just turned it to me not having a right to look in his phone. And so in your opinion as men, does he still have feelings for her? Why talk to her at all if you didn't want to be with her? His texts look like he likes it! Even though he’s not agreeing to meet right now?

Guys, what do you think the guy I’m seeing feels about this other girl he’s texting?
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