Respect. When there is respect,love comes in automatically.
Not necessarily. Some emotions don't follow automatically. You can respect someone without loving them. For example....you can respect your boss even though you don't love him/her. You can respect your coworkers, neighbors, and even acquaintances.......without having feelings of love for them.
There are married couples.....who don't love each other......but they have agreed to continue being stuck in the relationship which is based mostly on respect........not love.......not passion. Just respect and tolerance.
HOWEVER...........when you LOVE someone.......you should respect them. Because RESPECT is a required foundation of Love. A husband who claims he loves his wife WILL/SHOULD respect her.