why does loving always next to hurting?

I feel bad if I hurt someone I love and I regreat in my mind, I get real sad and upset which everybody around me can realize and get worried me, and I spend some real bad time fighting with me, why I did it, and finally I go to that person whom I love and whom I hurt and try to start over again, my approach is never rejected and I have never came back from that person, we had a new start.

well thats true love 4 u!! u'l get happy when ur patner is sad n vice versa. The simple feeling that u made him sad might b killing ...the only way forward is talk to him n make him feel comfortable with u again..... time can wipe everything and with time you'l feel the love flowing again.... take my word, got lots of experience at this. keep loving... thats the way to live

It's always like that my friend. You can't appreciate the how wonderful loving is if you are not being hurt. you can't differentiate and find its true meaning. Coz for me the true essence of loving is through hurting too!