I believe it can happen, if you both do it right.
No, there's no forever. You're here briefly, then you're gone.
Not really, no. everything ends.
Forever is a long time.
I also believe in unicorns, faeries and double rainbows with pots of gold. Good stories last forever! and so can love.
Nothing lasts forever. :-(
I believe in entropy.
physically, its impossible. but who really knows.