Willingness to Sacrifice & Promises

I keep thinking about lot of stuffs, sometimes, I kinda forgot why I think about it. :p
 I believe, when two people in love (or in friendship), they must have this feeling of "willingness to sacrifice." But it won't work if only one side choose to sacrifice ,the other side, do mostly nothing. I`ve seen this kind of things, and probably, experienced it (in friendship n relationship). It is hurt, yep, no matter how strong you are, it still hurt.
And also, keeping the promise eventho it is sound childish and small. I admit it, I`m not a type of person that can keep big promise, but I try to keep it if I can. Right now, I`m really looking for that promise of contacting each other, once in two weeks. I really really looking forward to it. Even though it is small, but that small thing is a big and give lots of meaning to me...

I wish I could turn back to July 2011, and feel that strong love...once again.