I don't understand why she's still bringing up Mark and has apparently invited him to the christening. They split up nearly 10 years ago. I get they were together for a while and she was close to his family, but that was a long time ago now. There comes a point where you just naturally move on from exes and they're no longer in your circle. It's the way it's being phrased, like "she wants to prove there's no bad feelings" - comes across as odd.