If H is calling to ask son a question, it's an excuse. I completely agree with you. Your son is 5.
H was checking up on you as usual. IMO, he wanted to make sure you are home.
Let him keep calling. Don't you call/contact him at all for anything (unless son is hurt real bad or something of the like).
Last May my son broke his arm. I called H on the way to the hospital. Otherwise H never hears from me.
ME48/H48MLC T 33y M 28y S16 OW 8/7/05 Bomb 8/16/05 Sep 9/05 H f'd D 10/3/08 D pp'd 1/20/09,7/24/09,12/4/09 D dismissed 2/5/10 H served me D papers again 9/4/10 D dismissed 9/26/11