Being alone doesn't have to equal loneliness.
I know plenty of people who are married who are unhappy. I also know quite a few people who are single who are happy. If there's one thing I've learned in my 27 years of life, it's that the strong people do not need someone else to complete them. Because they are complete all on their own. They are not half a person or in any way worth less than a couple is. All the joy and shit that life brings, single people can do it all on their own, and that's something most couples can't say.
Us couples depend on each other to make it through a day. I, for one, can't open a bottle of Raspberry Smirnoff without Steve. I can't clean the house without him vacuuming. I do like having someone to listen to me vent after a long day at work. I like to have someone to watch movies with: I am not ungrateful for my relationship. But seeing movies, you would think someone who is not in a relationship is half a person; you would think snuggling under a blanket with someone while sharing a bowl of popcorn equals bliss. In all reality, some of us in couples have our own recliners with our own blankets.
I love my husband very much. He gets me and doesn't bother me too much. But if anything were to happen to our relationship, I think I would try it on my own. I do love my alone time. When you are separated from influences, that is when you are yourself. Tonight, I sang at the top of my lungs after having a few beers: that's something only single people like Bridget Jones can do. Only single people can buy whatever they want and control the remote and not do the laundry without repercussions.
I'm not saying one is better than the other, I'm saying both are wonderful: enjoy whichever one you're in. The road more traveled is paved with cement and populated with cities while the road less traveled is rural with fantastic scenery.