Amelie, if you have taken your H back technically you are in piecing not DBing and the conditions are different. In the case of OW, you should have evidence that he has cut off all ties and there should be complete transparency including cell phones and emails. The vets can correct me if I'm wrong.
Perhaps you need to consider establishing a boundary?
It sounds to me like he has done nothing to earn his way back into your relationship.
With regard to his playfulness when you're in the kitchen, he might be sincere, he might be acting, or he might be giving you what he thinks you need in order to manipulate you.
What does your gut tell you?
me 45 H 46 T 5 M 2.5 BD Sept 6 2011 OW Sept 8 2011 Threw him out Sept 8 2011