Is Love Really Hard or People are Just Difficult?

Where does the spark and infatuation from the beginning go?
It's crazy how quickly you can go from being excited to talk to a person to feel like you're forcing the conversation. The quality time turns into "I was working" and the consistent communication becomes "I don't know". When does "I hate to see you leave" turn into "it hurts too much to stay?" Maybe we're all guilty of taking things for granted, or letting our fears stop us from taking certain chances. Maybe we think we can make love appear when it's convenient, or maybe we don't realize the effort required to keep a good thing good. Maybe we think happiness is something that just finds us, instead of being something we work for and choose to have. And maybe that's why we all get it wrong so often.
It's amazing how fast things changed...
You go from laughing about anything to arguing about everything...
You have to go through the motions, wondering if they're real, if they really care, or if they're going to run when it's rough. You want to give more of yourself to somebody but it's hard these days because you just never know if you'll get anything back. You think you have it all down. You do the little things, you stay consistent, but somehow it just doesn't add up. Maybe the problem is that we expect the love to be magical before we become magicians. Or could it be that we're all just better breakers than builders. We'd rather have feelings we can throw away and "love" that's disposable. Lord forbid a situation require us to grow, learn more, and actually put work in. Reality is rough. You only want what's easy and that's why what you get never lasts. Everybody wants to get fought for but nobody is willing to fight. She loves the butterflies but she avoids beginnings because she hates having to start over. He's tired but he's so used to chase that he's scared to stop running. 
Makes you wonder... Is LOVE really hard or people are just difficult?