I wouldn't put any stock in his text.

My H was famous for e-mailing me stupid photos of dogs wearing silly hats on Fridays right before he left work shortly after he left. In the 13 years I have known the man he never once sent a silly dog photo to me. He would e-mail me a ridiculous photo then go spend the weekend with OW.

He knows you are sad and hurting and is throwing you a crumb to show you what a GREAT guy he is.