I send H pics and videos sometimes too. I send them after he sends the sad texts telling me how much he misses her and I feel bad. What we have to remember is they CHOSE this. I think its ok to send a pic here and there, but that is it. I wouldn't follow up with anything else. I think your H still feels like you are sitting there waiting for him. Try and change it up and make him think you are gone for good and you don't need him. You realized you are way past that and are moving on. You have done it in the past and he seemed to respond. May help you too.
Me: 46 FWS: 36 Married and Divorced 4/07, Pregnant 7/07,False R 7/07 Baby Girl born 3/08 Kicked him out because OW: 7/08 5/10 He realized what he had and lost. Moved home! REMARRIED 3/14/11!!