This was my ex-sister-in-law. She had a tough childhood and worked on healing that a little bit, but only intermittently - and not nearly enough. We literally referred to her as Eeyore behind her back. Not that the demise of the marriage was all her fault, but my BIL is just blossoming now that he's away from her and dating someone who is positive and fun. I wish she'd been more willing to invest in healing from the past and not expected her spouse to be the professional support system that she needed.