if you lent your partner some money and had an affair. ..

[Frogisatwat]

Would you ask for it back? My former partner lent me some money. A small sum. But a significant one all the same. Anyway its here ive told him he can collect it when he wants. ..
However part of me thinks.. you cheeky fucker. For three months before I found out ....he was having an affair. I had been happily decorating and fixing up his house (I do this as a business) for no charge. He wanted to impress little miss sparkles.
I think if it were me (and I wouldn't have had the affair) I would take the hit on the 'loan' given the upset.
What would you do?

He didn't lend you the damned money, he lent it to the business!

I like castlemilks suggestion

Or write him a cheque and post date it to 2016...

Dont even try to. His morals are clearly different than yours. Some things you will never understand (i know that feeling- you could torture yourself over trying to understand). Stop trying to work him out, its really just an attempt to hold onto some part of him and you wont be able to move on if you keep trying to understand him. Let it go, let him go, let yourself move onwards and upwards to better things.

definitely invoice him because little miss sparkles won't want your decorations and want her own, so he'll end up paying twice.
What a shit.
There are so many on here I wonder who breeds them.

OK, well your priority now is to remove him from your business- the moral standpoint isn't really important . Clearly he doesn't operate the same moral system as you, so your best bet is to cut all ties with him.

I would argue that he lent the money to the business rather than to you personally. I would also argue that the business should invoice him for the work done- I'd check this out legally and invoice quickly , in case there are time limits. It might be the case that you both agree it's easier to cut all ties in one go, treat the loan as payment and call it quits.

I would give him the money back, but I would minus the cost of the work that you did for him. I don't think he can complain over that one as he didn't break it off with you because you were doing the work 'gratis'. He used you, he can pay for it. The rest of the money is his rightfully.