Okay, that makes sense.Being prodigal is forgivable per Luke 15:11-24, but that is not apostasy (cf. 2Tim. 2:11-13).
I remember that even though I was a prodigal son, I still hung out with other Christians and I still considered myself a Christian, even though I was running from God.
I’m not sure if he considers himself a Christian, so I get where you are coming from.