was he rich? If one has been with the person for 10 years, then they have heavily invested their emotions into the relationship (think Amy Hellickson and Rich Pana).
he was a provider, had a good job, wanted to settle and have a family etc,he was more of a father to her than a husband even though they were the same age, she had problems with him touching her, she only loved him like a brother, he was suspicious of her having an affair but never really had the guts to actually do something to find out for sure,she said he was probably too afraid to find out the truth.......... i was only a student at the time...well after she got pregnant she realized what a mistake she had done, she felt sorry and entrapped, we were still in touch over the phone for 3 months after her pregnancy and that was it, don't have a clue what's going on with her now etc.