My EX on the other hand has changed his Facebook to 'in a relationship'! (Not the OW th ok hasten to add). Why is it that the majority of men don't appear to be able to be on their own for more than 5 minutes?
Binders (me again), there is a lot of research about the way that men/women who are bereaved find their 'new normal'. Most men (86%) find a new relationship within 6 months; most women (67%) batten down the hatches and don't even seek a 2nd relationship within 3-5 years. Susan Wallbank and Virginia Ironside did a lot of research into the different ways that men/women handle the physical loss of their partner. It isn't all about men wanting a new partner to cook and clean, it is [allegedly] the way that men are wired and being in a 'relationship' validates them.
I see a similar pattern in 'cheating relationships' that I read via MN, but I have no empirical evidence to back it up at the moment.
In my family, I and my two sisters are classed as 'young widows' (My elder sister widowed at 52yrs, I was then widowed 18 months later at 46 yrs, my younger sister widowed 6 yrs after me at 53 yrs old). None of us have sought a 2nd partner - but we could do if we wanted to. The family dynamics don't prevent that. We women just 'battened down the hatches' and haven't let anyone else into our lives. My Uncle was in a new relationship 6 months after my Aunty died - but we wish him happiness.
Men do appear to move on more quickly than women. But perhaps that is because they don't have to keep up the day-to-day family routine and offer stability to their child(ren) 24/7. I don't know Binders. I truly don't know.
I just feel that from I have read to help me cope with my own situation leads me to believe that men do move on more quickly. So you should NOT feel invalidated because your ex is in a new relationship so quickly. He has lost everything because contact with DS is via agreement and dependent on being a good Dad to DS. Please don't see his new relationship as 'stoking or poking you' or trying to get a reaction or anything like that. That will only stop your healing and working forward.
Of course it is disingenuous of him to use Facebook or any other social media to inform the world that he is 'happy and moving on in a new relationship'.
Can you suck it up and ignore for now?
You still came out with the best scenario from a rotten situation ..... a lovely 8 yr old DS who simply adores you and loves living with his Mummy, being with Aunty Rotty and has sleep-overs with cousins. Enjoy!