I think many people think that twins mostly get along because of that twin connection. I'm here to say that we are no different than any other relationship. We get along on some days and fight on other days. I believe that the major difference between my twin sister and I, is how quickly we make up.
I will never forget a night back at college. We were hanging out with a group of friends when sis and I had a normal fight. I felt like I was on stage as people looked at us like it was wrong to see twins argue. I think many twins feel this 'on stage' pressure' of thinking we have to act like we always get along. Just so you know, twins are no different than anyone else. Yes, we have a great and deep connection, but that doesn't change the fact that we fight. I strongly believe that fighting is healthy in any relationship.
I'm going to let you in on a twin trait that confuses singletons. Twins can have a huge fight one minute and hug the next. I'm not sure if this is true with all twins, but my sister and I love each other so much, making up quickly is normal.
I learned very young that people found my sister and I odd for making up quickly. As I matured, I realized that we were role-models for not only twins, but all types of friendships. I try to to use my unconditional love for my sister as a reminder to everyone. Life is short, God wants us to love each other despite our flaws. I have always believed that my relationship with my twin sister is a Godly model of 'Unconditional Love.'