Struggles

I have been struggling of late regarding my detachment,  sometimes feeling I have taken it too far. I try to maintain some sort of communication with my son, I text him and tell him I love him. Usually, I don't get a response unless there is a request for something involved. The something lately has been a request to move back home. When I state that it is not an option...crickets again. I start to feel selfish. I start second guessing my decision to love him from a distance. I wonder if as he says, I have abandoned him.
Then I think about it......He is working full time,. He has a place to stay and is supposedly working on getting his own place.(It's just not happening as quickly as he thinks it should)  He is getting on with his life. Could I really contribute anything more to what he is doing by himself by having him under my roof? Honestly, I don't think so. I just wish he could see it that way.