My big sister called last night and asked me to ask my fiancé if she paid him could he put her…

My big sister called last night and asked me to ask my fiancé if she paid him could he put her handles back on her car. A couple months ago her boyfriend ripped the handles off both doors on the drivers side she has a 2009 chevy impala. And On her birthday in October he totalled the whole right side of her car and she had to use her insurance to get it fixed all the work came out to $3900 she only had to pay 590 which was due to her deductible...any who I said I'd ask him if $40 was enough cuz I'm not doing the job I couldn't negotiate a price she got all pissy cuz I said that, if she took it to the shop the mechanic said it's about 3-4 hundred with labor. Why would you get a 90% discount on something he didn't do? We don't owe her anything but sometimes she acts like a fuckin 5 year old when shit doesn't go her way mind you every time her boyfriend has fucked her up financially I've been there to fix the problem. I get the fact were like Ying and Yang but don't try to get over.