Background: Cousin and BF were together since she was 19 or 20, which was for about 6 years. She broke up with him after realizing that their relationship wasn't headed in the same direction, among other things (e.g. she wanted to get married eventually and he didn't). She confessed that she had been depress for the last year with him and he replied that he had been discontent for the last two years with her. She moved out immediately afterward and is currently living in our guestroom to save up money for her own place.
We both work 8-to-5 jobs, so we're usually home at the same time, especially since DH and I are homebodies during the weekday. Whenever I talk to Cousin, she always brings up ex-BF. For example, I mentioned there was a lot of bacon in the fridge that was given to me by MIL, so she should help herself. She replied with a story about how she can't eat bacon on its own and ex-BF loves bacon because this one time she made him and his best friend turkey sandwiches with bacon and so on... We talked about what our families were doing for Thanksgiving, because we usually get our families together. Her response included letting me know that she texted ex-BF about what his plans were for Thanksgiving; he's going with his mom to her cousin's house, whom Cousin has only met once but knows ex-BF won't have a good time.
As of right now, I just smile and nod, which is followed by awkward silence. I know breakups are hard, especially after being with someone for almost six years, but I feel insensitive bean dipping. However, I don't want to encourage her to talk about her ex-BF and their 'fond' memories together if she is suppose to work on being independent from him.