It’s merely about the psychological payoff of watching the numbers in the savings account change and grow. I would bet a crisp £50 this guy checks his a count several times a day. Even one penny more gives a psychological payoff, that’s why they will fall to such despicable lows as asking for £2.50.
Underlying all this is a need for control.
It may be easier to understand if you liken this to anorexia, the sufferer is harming themselves but they do not see or care because they are addicted to the psychological rush of the control they are exacting over their own body. It feels like a sense of achievement, a job well done.
What makes the miserly person especially odious is that they harm others with their desire for control, unlike the unfortunate person suffering from anorexia.
Probably comorbid with other psychological issues.
It is definitely abusive and the sort of behaviour that would appeal to someone with a fascist mentality, the relentless punishing routine of it all.
The misers on the dark triad ends of the spectrum will delight in the sadism of it all, so yes, the enjoyment will be the dupers delight, in which case, that’s very bad news for OP, making it imperative that she cuts him off completely and forever. Definitely should NOT criticise him when leaving, OP should blame herself or an outside source.
I’m so sorry you’ve had to suffer so long with this, OP.
@Rockrose94 , do not loose your trust in people, but do please react to things that do not feel right to you early on, and never allow someone’s financial status to be a reason why you stay. If a man has enough to get by, that’s enough, he will share whatever he has with you. This guy wouldn’t pour tap water on you if you were on fire, he will be concerned about the water meter.
If a man with wealth will wield undue power over you and you’re slightly susceptible to that, I would avoid them in future. Better to be with a poor dishwasher who loves and respects you and would do anything for you, that kind of love is priceless.
The future can only get brighter for you, once you’ve got rid of this man, they don’t come much worse than him.
Please DO come back to us and tell us how you’re doing, I have absolutely no doubt your life will improve in leaps and bounds, especially your mood. I can’t imagine how frustrating and demoralising this must all have been.