My DP and his wife have been separated now for four years.
He recently received a letter from a debt collector's in relation to some private medical treatment their DS received some time last year. DP was aware of the DS having this treatment; however, his "D"W at the time assured him it was covered on her private medical insurance. It wasn't, and he has now received this letter demanding immediate payment. It was addressed to him at their previous marital home (where she still lives) but has come to him because he has a mail redirection service set up.
DP will settle this as it relates to his DS but there is a concern that she did this on purpose. I should point out she has a history of accruing debts for which he somehow becomes liable as it is recorded that he is still the homeowner. Having his mail redirected, she cleverly does this knowing he'll get notification from a debt collector in time when she doesn't pay up.
What can he do to stop this happening? Is there such a thing as "official separation" that he can get legally documented without her consent? She refuses to divorce him on the grounds she can't afford it (even though she can); the reality is she would have to give up their lovely (big) marital home and will lose out on this clever way of screwing him over money-wise.
Any advice greatly received.