Trust
Trust is a foundation of which every relationship must be built upon in order for it to even surpass all obstacles of which it encounters.

Honesty
Another foundation that every relationship should be built upon. In order to have Trust, you must have honesty. I really have a problem with people be dishonest. I'd rather have the truth and it hurt me than to ever find out that I've been lied to.

Compassion
Have love and compassion towards one another. You may not be able to aleviate someone's pain, but you may be the shoulder that they can cry on when things get too tough to deal with. If you can't have compassion for the person you love, what's the use in loving at all.

Spend Time Together
The greatest way to show someone that you care is by spending time with them. If it's only for a minute, two minutes maybe an hour or a day. It will mean something to the person your with if you dont get to see each other on a regular basis. Every little bit of time spent together goes a long way in someones heart.

Love
Love without regret. Love without end. You can not truly love someone until you love yourself either. Love Yourself, then you can love everything about the person you're with.