This sounds so familiar,I have been with my " unhappy" married man for 4 years now,he is with his second wife but doesn't have any children with his second wife,,he is 16 years older than me,,I'm 34 and have 2 children who have met him n they love him,he stays at mine as and when he can,he tells me he loves me and loves spending time with me and my kids but the age gap worries him to upsetting his wife and leave her as she is I'll and his grandchildren know her as nan but also his ex wife as an to n he thinks it will confuses his grandchildren and it will also make him look bad,I love this man to bits but he says the only way we will b together is if his wife leaves him