You Speak Your Mind
Relationships thrive when couples can express themselves freely and honestly. That means no topic is off-limits, and you both feel heard. Consistent communication is vital to building a lasting life together.
You Have Your Own Space
Just because you’re in love doesn’t mean you have to spend every moment together. Taking time to pursue your own interests and friendships keeps your relationship fresh and gives you both the opportunity to grow as individuals—even while you’re growing as a couple.  
You Fight
Disagreements are normal, so if you aren’t fighting, chances are you’re holding back. But when people in healthy relationships fight, they fight productively and fairly. That means avoiding name-calling or put-downs. It also means striving to understand your partner instead of trying to score points. And when you’re wrong? You apologize.
You Like Yourself And Your Partner
Chances are your relationship won’t suddenly get better if you win the lottery, have a baby, or move into your dream house. So don’t base your partnership on the hope that it will change. You recognize that neither of you is perfect, and you accept and value each other for who you are right now—not who you might become.
You Make Decisions Jointly
You don’t call all the shots. Neither does your partner. From what movie to see to how many children to have, you make decisions together and listen to each other’s concerns and desires. 
You Find Joy
Healthy relationships are full of laughter and fun. This doesn’t mean you’re giddy every hour of the day—or that she doesn’t drive you up the wall sometimes—but it does mean that your life together is mostly happy in sometimes simple ways. (Making dinner, laughing at the same things, finishing each others’ sentences…)
You Find Balance
Sometimes your partner needs to work longer hours while you play chauffeur and chief cook. Or you must devote time to an elderly parent while your spouse tackles the chores. That’s life. What matters is that, in the long run, your trade-offs seem fair.
You Treat Each Other With Kindness
Nothing is more important than treating the person you love with care, consideration, empathy, and appreciation. If you find yourself showing more respect to people you hardly know than you show your partner, take a step back and revisit your priorities.
You Trust Each Other
Healthy relationships are built on trust and a commitment to communication without reservations or secrets.
You Let Things Go
Your partner will annoy you. You will annoy him or her, too. You will say things you don’t mean. You will behave inconsiderately. The important thing is how you deal with all this. So he forgot to pick up milk for the second time? Tell him you’re disappointed, of course—then let it go.
You Are Intimate
Intimacy, which is less about physical satisfaction than about bonding, friendship, and familiarity. If you’re in a healthy relationship, you’ll feel connected.
Your Relationship Is Your Safe Place
Your relationship should be a safety net—a stable place to come home to at the end of the day. That doesn’t mean you don’t fight—it just means that when things are hard, you’d rather see your partner than commiserate with coworkers at Happy Hour.
You Talk To Your Partner, Not To Other People
When you have issues and concerns, you share them with your partner, not your Facebook friends. You can use pals as a sounding board, of course, but not as a crutch to avoid hard conversations with your significant other.
You Say The Magic Words
 “I love you”, “Thank you,” and “I’m sorry.” 
Source: realsimple.com