valentines day urgent translation please help!

[legendaryjjj]

Im studying mandarin at the moment but im a bit terrible. Im flying to china to meet my girlfriend and will take a card over with a message on it and would really appreciate this translated!

To my love,

Sweetheart, happy valentines day. I will be with you forever, even in 50 years when you are old and look like a dried potato.

Love, (my name)

[skylee]

冤家：

心肝，情人節你得快樂時且快樂。不出50年你必雞皮鶴髮又老又醜，即便如此，我今生今世跟你沒完沒了。

陋夫(your name)

[Lu]

The translation is even better than the original :-)

[Nathan Mao]

@skylee

I've always seen/heard 一生一世。 你为什么用‘今生今世’呢？

[skylee]

No reason. It was in my mind so I wrote it that way. That post was meant to be fun.

OP - don't use my version. Wait till someone else gives you a real translation.

[Nathan Mao]

It was fun.

I was just wondering if there was something to learn there about northern/southern differences in word choice.