I live with my DH, DSD2 and DD. DSD1 is 26 and I honestly don't have much of a relationship with her but we get on. She is from a relationship before DSD2 so is DSD2s half sister and again they don't have much of a relationship so we very rarely see her
Anyway DH got a phone call from DSD1s mum a couple of months ago. She hasn't worked for a number of years due to anxiety and depression. She also has serious issues with money- pay day loans and credit cards and has also stolen money of her DM before but it is worth mentioning that DM wasn't feeding her and she was using it to pay for food and so she could attend her psychiatry appointments- at this stage her sickness benefit had stopped and she was too ill to work despite the job centre believing otherwise
Anyway her mum contacted DH a few months ago and asked if she could come to stay. She didn't want to at first and stayed with grandparents, but has been staying with us this week.
DP went in her bag the other day and found a letter over a payday loan. He paid it off despite her insisting she didn't want him to but he did it anyway and then 10 minutes later threw it in her face that she was ungrateful "and only seems to ask for money". The next day it was a credit card bill which DH asked me to borrow the money for (didn't tell me what it was for however as DSD didn't want him to pay it so he could throw it in her face and I would of sided with her and told her to pay it out her own money) and he did the same.
He has just done it again over £10. DSD asked this morning if she could possibly borrow £10 so she could go and visit a friend in her hometown today. DH comes storming in after work looking for something that DSD uses and has said to her "I've lent you £10 of my own money today after bailing you out twice (at the cost of about £500) you could at least show some gratitude". DSD was more than willing to help him find what it was he was looking for but told him to speak to her with some more respect or she wouldn't.
He also have some serious privacy issues- he is paying for DSDs car at the moment and think he has the right to look through it without asking her. She also had some post sent her this morning which he opened while I was at work and she was still in bed probably.
AIBU to side with DSD?? I don't think it is fair to offer to do something for someone and hold it against them and regardless of the financial contribution shouldn't her privacy as an adult be respected?