I am glad you had a good fathers day. Sounded nice. Keep going. My W got me 2 really thoughtful presents - maybe it is guilt? Maybe it is to prove to them selves that they are still a good person? Or just for the kids. The rest of my family were shocked that I got anything and I ended up getting 3 lots of Fathers Day presents.
I am sure your S really enjoyed his day with his great dad.
Me=32 W=29 R=12 yrs M=7 yrs BD 02/18/18 Dd=3 S=6 Other man confirmed 06/10/18