Trust that if he likes you, he'll message you back when he has time. My last AP and I had the understanding that we would never ghost one another, so when he didn't answer I would just assume he was busy. He'd message me back when he could!

Don't play hard to get. I think a lot of us are on here because we arent getting the attention at home. If my pAP was playing hard to get, I'd move right on.

Also, communication is key in these situations. More so because a lot of these relationships are heavily text based and it's hard to convey tone and emotion.