I've had a complicated relationship with my mother for years. She's a very self-centered person and hasn't really been a mother to me for the last decade or so. i.e. She took 10 days to call me to congratulate me after I told her I got engaged and immediately asked if I had any "financial expectations" from her. Things came to a head around the holidays when I wanted to host and she wasn't responding to my calls or texts to see if she was coming. I waited for a few days and texted her that I would take her non-response as not wanting to continue a relationship. This apparently set her off (I found out via my uncle) and she was apparently upset/offended. I've been trying to reach out for the last few weeks to talk things out and she hasn't bothered to respond to me. At this point, I don't want to invite her to the wedding, but feel like I will catch heat from my siblings and uncle if I don't. AND it feels like it will definitely make the relationship irreparable. What should I do?