We had no boiling point - our DiL was delightful literally until the engagement and then she just hit us with the full force of her personality which was completely different to the one we thought we knew. We thought it the stress of the wedding, then the stress of being pregnant but no. She would visit and be fine but then we would get a phone call from our son once they were home with a problem of something we had said, or not done, or done, or not said. I've tried to explain her - if I met her in the street and said Hello, how are you - she would whip around with 'what's it to you how I am' and she could progress to 'I expect you hoped I was ill' - get the gist and the next person she might meet she would say, 'well, I've just seen J and she said she hoped I was dead' - and that is how it works. We could not possibly imagine such a personality, let alone coming into our lives. We can't do or say anything that will not come back and bite us no matter how careful we are. Hey ho. Please let it not be 20 years. I fear that if Himself were ill or died I wouldn't be able to forgive.