I don't understand the whole "you're supposed to grow old together" excuse for why people shouldn't marry others who are older or younger. It's such a cop out.
Actually, I do NOT want to grow older with my boyfriend. Lots of bad things happen in old age. I want to help him as he gets older...I do NOT want to be his age and be suffering with the same problems, immobility, etc. This happened to my grandparents. Both were very old and always worrying about the other and it was so hard for anything to get done because both were so old. I don't want it to be that way. I'd like to support and help my boyfriend get older, just as he supports me in starting my own career.
When I am old, he will be gone and that makes me sad, but I think it will be better because I will have helped up to the end, and now I get time to care for myself and I won't be worrying about him anymore.