Tisraining, I meant to say, my ex was also a loner, resented being asked to do family stuff or spend time with me eg going for a run or bike ride together, as I would slow him down, or taking the kids when he popped to the shop for milk as it was unnecessary.
Now he lives alone he is much happier as he gets lots of alone time and the kids stay with him once a week so he actually does stuff with them now as he doesn't have the option to just bugger off and leave them alone. They also have a great 'step-dad' who plays cards, instigates water fights and encourages them to go for bike rides with us.
Splitting up doesn't always mean things change for the worse. Ex is happier without having to consider me at all and only having to deal with DCs one or 2 days a week; I am happy in a new loving relationship with a man who chooses to meet me for lunch and spend all his free time with me, dcs are happy to have a more relaxed home life, spend actual time interacting with their dad and have holidays and weekends away (that their dad hated doing & vowed never to waste money on).
The first few weekends I desperately missed my dcs on the night they were away, but now my DP and I get to go out for dinner or cinema, lounge around in our undies with takeaway and sometimes even get a holiday without the dcs which is peaceful bliss (& makes me appreciate them all the more when I get home). You get used to it.
I did have to up my working hours but I became a childminder to fit around my DCs (ex never wanted extra kids in the house so it was an impossible idea before) and the kids I mind are lovely so it barely feels like work. I am financially better off due to being in sole charge of my income, no XH to tell me what I can and can't buy.
I honestly wish is done it years ago. I know not everyone has it so easy, but please don't let fear of the unknown paralyse you, life should be happy.