DH's sis is quite high maintenance - she has had mental health issues in the past and while she is currently in a 'good phase' and has been for some years now, she still demands his attention all the time. She wants him to pop round all the time and always invents issues in her house for him to look at and if he doesn't call her back was often as she wishes, she goes crazy. Because of her health history, he always worries that he has to do everything she says (I could list many incidents here but want to keep it as brief as possible!) but I think he is just enabling her. I can't tell him that though.
Now she keeps texting him to call her or ringing and demanding that he calls her back right away because she 'can't afford' the phone call. Then she chews his ear off for an hour several times a week. We REALLY can't afford the phone call either. I'm getting just SMP and his wages are low but she seems to think that she is poorer than us just because she and her husband are on benefits. I am not begrudging her family their money at all but she's told me their weekly disposable income and it's £100 more a week than we have right now but I don't feel I can point this out because she takes it as me attacking her for being on benefits (like she thinks I'm saying they don't deserve them when I just want her to understand that we are even poorer than her. She thinks because we work we're not though. We are!)
Now she's asked DH to 'lend' (which is always) give her money for a repair on her car. I've been on ML for four months now and would like to stay off for another five months but we are really struggling. AIBU to be annoyed by her behaviour or am I a horrid person for not considering her past?