Lots of examples but when she split with my dad her only focus seemed to be on finding a new husband. As I said, many examples of questionable choices but I’ll just mention two ...
so she was doing old fashioned pen pal dating (equivalent of online dating back in the day). She met a guy she liked at the other end of the country and went off to stay with him leaving me with my grandma. Not so bothered about that but she did promise she’d be home for my 10th birthday. On the day of my birthday she rang my grandma saying she’d missed the train and wouldn’t be home after all. My grandma went ape shit at her and I was sat on the stairs, on my birthday, crying as I listened to my grandma telling my mum off for dumping me in favour of a new bloke. I know it sounds trivial but it’s always stuck in my head.
Second example - so, this bloke mentioned above didn’t work out as he proudly told my mum that he didn’t want me, he just wanted her. So she started writing to someone else. This progressed to her arranging for him to come and stay with us (baring in mind she had never met him) and she decided he could have my bed and I’d sleep on the couch. Again my grandma went ape shit and my mum decided everyone was against her etc etc. This bloke did come to stay with us, he was awful and promptly started talking about boarding school for me to get me out of the way.
I don’t know ... as I said, too many examples to mention but these two stick out. AIBU to still be thinking about them all these years later? I’m nearly 40 now.