Well I've received a random card and the gf is NOT happy.
It looks like it's written by a 16yo with the pens used and spelling. There's no name to it but there's a long lovely handwritten poem

this may look like I'm a stalker
But I'm really just a dog walker
I like your curly dog
But I like you even more to snog
I followed you too your house one day
You turned around and i said hey
I hope one day we could be together
I like whips and chains and also leather
My obsession is growing greater
And your girlfriend well I hate her
I hope one day our dogs could be brother and sister
Because that means you'd be my mister

Mates and the gf all swear it wasn't them so I think some kid is actually serious about this