Hi djayr! Sorry about your weekend.
Pretty much what katie said. No, you don't have to do this. In fact, it is recommended that you don't do this--to yourself.
Your separated wife is exactly where she needs to be to receive the care that she needs. If she decides to further pursue her recovery, although it sounds as though she does not, the professionals there will be able to assist her. I hope, for her sake, that she avails herself of these resources.
Please, please take good care of yourself.