Happy Valentine's Day: Loving one another in anger

I feel a lot of love in my house. But there are conflicts, hurt feelings and misunderstandings. I know we are on a journey together to love each other the best we can -- to forgive and accept, and to challenge ourselves to feel our feelings without hurting others with our actions or words. This is a big challenge for me, having grown up with a parental mandate to be happy. What do I do as a parent who wants to validate emotions, live in an environment where strong feelings are OK and model communication that is not hurtful?