Specifically SIL . Just feel that whatever I do is never good enough. I make regular phone calls, send flowers when times have been tough, send thoughtful/ personal presents at Xmas and birthdays, treat kids, watch what I say and I don't get any thanks. Why do I bother? Do you 'need' to get on with SIL? If it wasn't for fact we were SIL, she's not somebody I'd naturally gravitate towards. Just always feel inferior to her. There's quite a lot of history where I've felt like this but it'd take ages to type and it'd reveal me I'm sure!!