Been down that road...thought he'd be a fun/fling at first but things got serious...he's a good catch, makes great $$, masters degree etc. I am mid 30s he's mid 20s. There's a 10 yr age diff...but here's the thing OP....he talks about having kids/ marriage in the future tense! And I would hate to rush him... He's 26..very driven he wants to do more with his career, investments etc..by the time he's ready I'll be in my early 40s. I do not want to a baby at that age....your friend needs no think about that...I actually prefer younger men but 10 yrs is a whopper.