The background story: I dated my ex for two years and we've been broken up for almost two years now. I spent a lot of time in his home with his family and friends and I adored them with all my heart. When we broke up, having to leave his family was pretty hard on me. We continued to casually see each other for about 9 months after our break up. Out of nowhere I found out he had a baby and that was when all hell broke lose. The girl he got pregnant found out he had still been seeing me. The gist of it was: she said ugly things to me, I said ugly things to her and then my ex and his friends also said ugly things to me. At the time I had absolutely no idea he was seeing her or let alone gotten her pregnant. Either way they were all determined to paint me as the biggest bitch on Earth. All of this has taken place the beginning of this year and I'll admit that it has been really hard on me. I still haven't fully gotten over the situation. During one of the many email exchanges with my ex he deliberately told me to stay away from his friends and family. It's been about 8 months since he made that request and I honored it because I really didn't want to bring more drama to my life.
Well today I went grocery shopping and miraculously ran into his mom. She immediately hugged me and we talked for a while. She insisted that I visit her and come over for dinner and she also told me that I will always be her family. I don't know if I should follow up with her request. Seeing her for just those 15 minutes hit me pretty hard because I was suddenly flooded with great memories of being with his family and also with him. I know me and my ex have been officially broken up for almost 2 years, but it's been less than a year since we were last together and only about 8 months since our last confrontation. I've spoken with some friends and they said I should go visit my ex's mom. I feel like I might not be strong enough to be surrounded by his family and all of his home belongings (even though he doesn't live there any more). Should I consider visiting them (even if it is infrequent) or should I just leave them in the past? I think I'm also a bit afraid of spurring an argument with my ex.