My ex husbands family (married for fifteen years) knew exactly what he was and felt sorry for me, often made comments to him about being lazy !

Yet when I eventualy left him they all (without exception) 'joined' his side and shunned me, that was three sisters their partners, children (some of whom was adults) and his mother and father.

One who I classed as a friend even went to the extreme of phoning me and telling me it was fifty fifty lol. But as it was her brother she 'must' side with him !

I would try to let his family go in your head.

You may also be suprised at how much he will change towards you ie becoming cold and bitter, expect it then anything else is a bonus....