Hi I often think how my now 6 year old daughter will cope in her adult life, blaming me for the breakup, feeling insecure that could lead to bad situations… I often think what helps is doing things together one on one, I know my daughter is 6 and I can’t speak from experience with teenagers but I was one and I remember when I was moody or communicative. The real times came when there was connection with my parent or relative, this happens when you do things together, so take him out of school for the day, its therapy or whatever you want to label it as to the school, do something special, amusement park, go karting, air kicks , I don’t know let them choose it or make it a surprise. I don’t know if this helps but it might give you some inspiration for your own solutions, good luck.