He won’t throw away gifts from a girl he had an emotional affair with

My husband had an affair while traveling. He says he only kissed her. It’s been sometime now and we are working it through. We are separated thou because he wouldn’t help me feel safe again. Everything seems to be changing for the better now expect he doesn’t understand that the gifts she and her family gave him are a constant reminder of his betrayal to me.

Please answer if I’m overreacting ? Or should he have gotten rid of them.

I already feel shitty so please I don’t need to know how you would have left him by now etc. would appreciate that.