Oldie but a goodie - fitting for a Sunday

I'll have to swear you to lifelong secrecy

Is that longer than an hour? Cause an hour is like really long.

At least three hours

Trust me, I’m a stranger on the internet. I stack trust to the ceiling

I think it has something to do with me...

cAT

@catfromhell plays a part indeed.
Also, sad downvoter person, get a life and join us in the party.