Why do I get emotional unavailabile person in AM set up

Since I had a break up it's been more than a year, I'm trying AM (29F) but whenever it's the family agrees the guy shows less interest, i don't get emotional available person anymore, either they talk great in first 2 days and then disappear suddenly or they don't show any interest at all.

I was healing but all these scenarios again triggers my anxiety so much I don't even able to talk or bear.

I don't know what is wrong in AM? I do respectful towards family and the guy, whatever job they do whatever they did. But why it happens continuously like after 2 3 days of talk they disappear or show less interest.

This thing is just not bearable enough for me now, or I have some issues I dont know.

Are they really busy or something they don't want to tell us the truth??

It feels like enough is enough, mind says stop it.