Op, it's great that you lead a full active exciting zesful life...it's just that you probably will never be able to have a possible healthy long lasting relationship because you sound exhausting, controlling, unable to relax, unable to relinquish control, unable to genuinely compromise, you also seem to treat these men as if they were your child instead of a partner. You don't make them feel needed nor wanted. You don't require anything because you're happy and willing to handle things yourself.
Unless you are willing to change, and genuinely work towards true partnership and incorporating someone into your life....
It's best that you remain single.
Domestic life doesn't seem to suite you and seems to bore you.
You also seem to not know how to be in a relationship.
Sneaking off to a neighbors to have a jolly time while your partner is sleeping and your children are home but entertaining themselves because you find it boring to stay in the house and just "be" on Christmas, and it isn't what you wanted in the first place....is terrible and sends the wrong message to him and your children.
It sends the message that you'd rather not be bothered much with any of them, that they're not up to your standards...not good enough....
You've been sending this message to your children their entire lives by not really being much of an active parent.
You willingly worked until almost their bedtimes, came home, put them to bed, and was on the go again.
Yes their father was there, but they needed their mother to be more involved.
These men that you're having relationships with, you seem to not care much about and have a lackadaisical attitude towards...
Also, this recent ex...it seems like you wanted him to play the role of a child carer/ miner ...someone to be present with your children ...while you went on with doing what you want...as you're use to.
I can understand why they breakup with you, and you can as well. but I don't really feel like you care that they do.
Also, later in life or when the children leave home, don't be surprised if they dismiss you, hardly visit, or call, etc...