I'm not going to pretend I'm an expert at relationships, but this seemed like an interesting randomly generated topic, so here goes --

• You get what you give. I'm absolutely so much more likely to do something for my boyfriend than I am for almost anyone else. Why? Because I love him? Well, that too -- but also (and mainly) because I know he'll do anything for me. He doesn't bitch and complain when I'm not feeling well and ask him to get me some water or something, so I don't hesitate to do the same back.
• Forgive. Not the easiest thing to do, but it's impossible (at least, for me) to be happy when there's some unresolved issue looming over your relationship. If you can't forgive, try to forget. It's the next best thing.

I might add more to this because I feel like I have a lot to say -- I just don't know how to say it yet.