My best friend since college died suddenly. Prior to her death we had talked about my getting custody of her children in the event of such an occurrence. She was a single mother by choice and fortunately could afford to do it. I have been with her from Day 1 and have watched her babies grow up and consider them to be as much mine as hers. She had been estranged from her family for many years so there was never any question as to who would care for them if she was unable. Some months before the accident I became engaged but now that there are kids in the picture he has put the brakes on the engagement. He always seemed to like children, and had expressed interest in having a family, but now he is saying that he isn’t sure he wants the responsibility of taking on a pair of grieving 5-year-olds. I am naturally very hurt but agreed that if he doesn’t feel he can commit to being a father then we cannot be married. How do I explain to people who are expecting me to be getting married in the next nine months that it is no longer happening without going into all the details of our life?