And lastly, a girls heart is like a precious gem that you can never get in any jewelry store. :)

Trust
You should always trust your partner. No matter what, at end, she/he will be the one and truly you love.

Honesty
Be honest always on what and how you feel to your partner. Never shy to open up things.

Open communication
Always have an open communication. If ever there's a problem you guys can work it out.