Leave the guy alone, if you don’t like him, don’t talk about him, we don’t know want he feels or thinks.
Lots of people go through changes in their life, others cannot be the judge of their thinking.
To be a BT is a huge step, to spend time later in life thinking about one’s decisions is natural. People change direction in life, some in ways we can clearly see, through dress others in their thinking, which can be well hidden from the eyes of others.