I would add only to do it if you can emotionally handle it. I went to a party early on in my sitch, about a month after my EW moved out, that my W was at. She ignored me the entire time, sat with all of her girlfriends making pouty faces and taking selfies, acted like she was about 25 years old. I ended up staying for too long and I should have immediately left but I didn't recognize the situation and what I had got myself into until the next morning. When I overheard her and her friends talking about other guys I froze. The next morning I felt weak and a complete Beta.