Because it's LONELY
You have spent however many years in their bubble with their family, their friends, their pastimes.
I have DS and I love him, my 'brother' (ex's brother really) is still supportive but now lives with ex who does not like that we talk, I have walked away from social circle, the people I spent all my time with, and now DS goes there two nights a week and I realise how alone I am.
I don't want to go back to ex, he treat me like shit, but I feel so sad sometimes. I thought I would be with a good man by now, have a couple of kids, family around me, etc.
I am starting from scratch with my toxic mum circling me like a vulture trying to get into my life, and I am having to let her a little for practical help I need.
I walked away from my world the day I moved out and left ex and it's scary and lonely being on another planet sometimes.
Sorry I am just feeling a bit lost tonight.