What Are 5 Things That Matter Most In A Healthy Relationship?

Tha first thing you have to have is :

 trust
equal love
support
honesty
respect

Communication
Respect
Humor
Similar Sense of humor
Friendship, not necessarily in that order.

Intimacy is also important and I don't mean the type of intimacy that you get from the bedroom. I mean the type that comes from feeling that you and your secrets and your fears are safe with this person. That this friend is your best friend and you can share anything with him/her and it will be safe.

The five most important things in a healthy relationships is honesty, love, trust, support, and of course respect. Make sure he/she does all these things to you. Because if he/she doesn't than he/she obviously don't like or want you.

Compatibility, trust, respect, faithfulness, honesty, best friend and lover...

Love
Respect
Compatibility
Understanding
Sacrifice

They are:
Trust
honesty
respect
compassion and
understanding

LOVE is # 1, of course.  Following that: Trust, mutual respect, empathy toward each other, and a desire to see that your partner is happy beyond your own desires.

Love, Honesty, respect, Compatibility and you have to have each others back that's what I think a healthy relationship needs.

Trust , honesty, respect, all the rest will fall into place if you have these three.