Sooo, how can we use this to our advantage, ANY IDEAS?

[smtotwo]

Ex's new husband has a child he hadn't seen on over 2 1/2 yrs.
Suddenly when we started our fight for placement, he became father of the year.

Now 2 yrs later, he hasn't had any contact with his son, in over a yr.

I think this shows that he used his own child so that he and the ex would like one big happy family.  THen when they were done with him, stopped visiting.

So any ideas?