@JackTheSad
You say you “irritate” him, that the kids “irritate” him and that you don’t “think” you love him!
How old are the children? How long have you been together/married? How old is he?
You say that life will be easier without him - this might be true, but how is life harder with him?
What does he do to make you think he’s “irritated”?
If/when you decide to leave, take the wind out of his sails! Think of all the things he might say about you, then before you leave, tell everyone you know, mutual friends, family, etc., that he has said that he will tell xxx lies about you, so that when he does, they’re not surprised and they don’t believe him! If possible, try to record him saying these things to you.
You say that he’s “v. good” with the kids - isn’t he irritated by them?
How could you coparent effectively with a man who will lie about you, and “put [you] through hell”? What does that look like?
You are being ridiculous if you think there’s some magic solution that you can fall back on to make your H leave.
Anything you do to try to to get him to leave will backfire - putting on weight, lying about a disease/illness, crying all the time - these things will make you look unstable (not the weight gain).
The only way that you could engineer a scenario where he leaves you, is reasonable and doesn’t put you through hell or the courts, is if you write a script and give him a copy of it, so he can learn his part.
If he puts you through hell and through the courts, your children won’t suffer because they won’t know anything about it, unless you tell them, and why would you?
It seems like you want to get divorced and not put any effort into it, like some magic bullet that ends your marriage on Monday night and all's good by Tuesday morning. That’s not reality.
Get your financials in order, copies of his wage slips, bank statements, mortgage/rent statements, keep a diary everyday of what he’s doing/his irritation/threats of alcoholism, etc., so that you’re prepared and most of all, seek help via Women’s Aid, a solicitor, and anyone else who is prepared/wants to help, find somewhere to live and leave.
A family member (with grown children, albeit they still lived at home) didn’t want to leave the marital home, fought tooth and nail for it and ended up not being able to afford it and selling it at a loss and moving into a much smaller, decrepit house, which 20 years later is still decrepit as they can’t afford the repairs! Plus the ex spouse put them through hell and I said then, as I’ll say to you, no house is worth your mental health!
Some exes can’t be reasonable, so no matter what. Your H may be one of those unreasonable ones. Offer 50/50 for the children, where he has them one week and you have them the next. If he’s as irritated by them as you say, he might not want this, or he might try in the short term, realise that he doesn’t want to be a single parent for 26 weeks of the year and tell you that he would rather have weekends or some other arrangement.
Your H can only drag you through hell, or the courts, if you’re offering an unreasonable (in his eyes) amount of time. So don’t do that. Offer him a proper 50/50 arrangement and let him be the one to say he doesn’t want it.
If he’s such narcissistic, unreasonable and selfish man, he won’t leave, no matter what and he will get pleasure from any weight gain, crying, or any other thing you try to get him to leave. So protect yourself, and seek legal help 🌺