Also how do i handle interactions with in laws? I was very close with his mum for 4 months, and now that he is has started talking to her, its only natural that it will become more awkward for us to talk.
My ex-W has a good relationship with my family, and my GF has a good relationship with her ex-H's family. They continue to talk about their lives and their families. They stopped discussing their ex's. It doesn't have to become awkward. I think it'd only become so if you focus on talking about your ex, go to family events in common, or make a big deal about their rare mention. If forced to pick sides, you can imagine whose side they're vastly more likely to pick! So keep it about you, them, and your relationship with them. And it's okay if you can't hang out with them for a spell without thinking about your ex. We're all wired differently. This is hard stuff and if you have a good relationship, they'll understand a brief pause or slow-down.