Michal bas Avraham, dont take this personally, I am sure you are very wise and mature, but I hope you are not being misled or fooled.
When u speak about age mattering in terms of marriage, it has become more and more common for boys to date girls that are older than them, depending on how mature each party is. I have a cousin that married a boy 2 yrs her junior. It was quite unusual at that time, but this guy is a real educated business man, while she is softspoken and very fine, and when u’d see the 2 together, u could think he was her father!!