Name changed for this as It's extremely outing! because It's bizarre, mainly Pom bears, Mexican House Thief, Penis Beaker etc.
So I currently live with my ex partner. This is recent-I moved back in with him to save money in order to buy a house (obviously I can't do that for now 
).
We get on okay, but he was a terrible partner when I was with him.
Heavy drink problem (which he managed to keep secret for far too long!), lies, unable to manage finances, a whole barrage of dishonesty about his circumstances. It was horrible, so many tears and sleepless nights on my part as I'd really thought he was for me before then, but it was years ago and I have grown up a lot now.
This definitely bears some relevance to how I treat him now though. I don't have much respect for him admittedly as it took me a long time to rebuild my life when we broke up some years ago. I'm not horrible to him or anything but I am not overly nice. Had I done this to anyone else I'd have been mortified, ad definitely confessed and paid for damages.
We both own the house together.
Some time ago I was baking a cake. I didn't realise the flour had gone off, so the cake was inedible. I decided to chuck it out for the birds.
Amongst other twatty things my ex had done, he built a HUGE outhouse/outbuilding in the garden. I'd previously had the garden lovely albeit small and he built this thing which takes up about 90% of the garden. It's massive. I decided to chuck the cake on top of it.
But it broke the (corrugated plastic) roof of the structure. It made a hole in it.
This was a month or so ago and he has only just noticed. He came into my room this morning holding a hammer and said 'Whose is this hammer?!' I said I don't know, not mine? And he said he thought someone had thrown it into the garden and this is what has broken the roof. He wants to report it to the police as well.
He is not overly upset about it, and has fixed the hole now.
I kind of want to confess because I don't want him wasting police time.
I kind of don't though.
Would you? Honestly?
YANBU -Don't confess, no point and he's a knobhead anyway
YABU-Confess, It's the correct thing to do.