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Boy, is that the truth!</p>
<p>Tread carefully here; even if your nieces are truly grateful and appreciative of your help now…if this pushes your wife’s relationship with her sister off the cliff, the nieces, as time goes on, will find it increasingly difficult (and painful) to maintain a relationship with you and your wife over the bitter feelings and resentment of their own mother. More likely than not, if and when push comes to shove, they will remain loyal to her and possibly become estranged from you. I’ve seen it happen.</p>