When I picture a relationship, I picture 2 people (or more, whatever you're into) not only doing things that make them happy, but going out of your way to make the other person (or people) happy. When you're that connected with someone who you like or love, I feel like it's incredibly important to make eachother happy. Like, self-happines is important, yes, do what makes you happy (because don't forget your happiness is just as important) but when the other person is stressed or unhappy and nothing they do is helping their situation, you should go out of your way to try and help. A simple smile, or even just holding hands when they're upset can make such a difference in the other persons mood. Just letting the other person know "Hey, I'm here for you no matter what mood you're in."