He said, "It's hard we don't see each other much" then he disappeared

I have been reading the forums for about a week and now I’m going to ask my question. I met a guy through online dating who I knew (his dad was my old boss.) We started texting and he asked if he could take me to dinner. I guess I didn’t give a straight answer because he asked again a few days later and I said yes when? And he said whenever you want. I’m a single mom of three daughters and I needed a little more specific than that. A few days later I asked him if he just wanted to meet, he ended up visiting me at my house and we talked for a while and when he left he asked to kiss me and we kissed. The next week he came over again with food and we did the same thing. We continue texting and a few days later I said I wanted to see him again. And his response was, “It’s hard when we only see each other for an hour.” (I was having him come over once my kids were asleep and having him leave pretty early) so I offered some solutions like planning something in advance where I could get a babysitter or maybe he could stay later..no response. So I change the subject. We continued texting a few days then he just disappeared. He left my last text on delivered for a few days, finally read it and nothing. I didn’t reach out to him again, it’s been a week. I was already developing feelings for him and I’m so let down that it ended before it even started. What happened?