Blocking webmail services is like whack-a-mole. There's likely to be one somewhere that you'll miss, and when the potential leakers (henceforth known as patriots) find it, you're back to square one.
'I want a ring. I want a ring. I want a ring'
Gawd, that guy is lucky he's going to jail. Any woman who hounds like that isn't worth it.
For what it's worth, I will/never/ buy someone a ring. It's simply not needed.