Just a bit of background. My ex wife (still married) ended our relationship 18 months ago. She was having an affair with a guy from work. I found it very hard but on the whole have managed to keep things civil. Her and my son and daughter moved out of our family home and in with him after a month. He also had a fiancée who he ended his relationship with and asked to leave the home.
I have my son and daughter every weekend which is fantastic and take them both to their after school clubs each week, although obviously I miss them dearly and wish this hadn't happened. We have a great time together going to football matches and watching movies etc.
My mum is still a Facebook friend of my ex and last week she posted a picture of her new bloke with his birthday cards and gifts from the kids. The card said to a great Dad ! The kids are too young to go shopping alone so I am assuming she picked it out or got them to pick one. I know it is not a big deal in the grand scheme of things but it's just a huge kick in the teeth. They are my children he is not their Dad !