It may be against their policy

This literally makes no sense. You call him your best friend but you doubt his motives. Just give him the referral. Sounds like you’re losing him anyway because you’re not being HIS friend. You’re being super selfish and not a true friend

I mean it keeps happening so the horse is still kicking

That’s not a bad idea

This isn’t just expressing feelings. This is contacting pretty much everyone she knows to try and get others to buy into his stalking. Because that is what this is. It isn’t just expressing feelings it’s obsessive and could turn dangerous

You might need to get a protection order. Send him one text telling him to cease contacting you and your friends or you will contact the police. Then block

This is verging on stalker territory. Tell him you don’t appreciate him trying to rope your friends into your break up and that it’s over. And then block him. Tell every friend he’s contacted to tell him the same thing

Meh once you’re close to 30 no one cares. You’ve already established yourself and are mentally mature. Age gaps are only concerning when there’s a power/maturity imbalance