I don't understand

Why is it the people that deserve the least from us are the ones we do the most? Neil'ssistert is a complete waste of space but yet once again I seem not to messure up. She treats her parents like shit, never bothers to call her brother unless she wants something and even accused Neiland I of taking money from her mother (she was probably pissed because that was less she could con her out of. She was supposed to BUY a bed from us but she has only paid 500.00 and nothing in two months. But nope I can't say anything, because poor piiful Melanie has such a hard time. What the fuck ever. Her mother has bought her two cars since we have been together,not to mention practically raised two of her kids. She can't take off work to take her kids to the doctor but she can take off a week to go on vacation with her boyfriend. She can afford manis and pedis every other week but N's dad and his aunt to help buy her kids Christmas from her. She can afford to spend 800.00 on shit at Walmart but has to have state aid for daycare. But poor pitiful Melanie was too god damn stupid NOT to marry a crackhead and even more stupid to have 3 kids with him. But hey she's got a great boyfriend with a good job...that she lives with but she still has to call her father to put money in her account to keep it from overdrafting. I'm a damn good mother and a kick ass fucking wife and treated N's family better in the past 3 years than she ever has. But I'm still notgood enough to go on the pedestal that she sits upon. I don't get it...wtf do I have to do?