Disloyalty is one my most hated traits in some people.
When you promise something that really mattered to that person, it is a sin not to keep that promise. I know I’m not perfect. I forget some promises, too. But I try not to forget something that really mattered to someone really close to me. If I do, I admit that I was wrong and I apologize. I don’t make some lame excuse that I did keep my word when in fact, I didn’t.
When you lie, you double the hurt you’re giving to that person. You did not keep your word na nga, you lie pa. That’s so distasteful! But what do you do? You can’t hate people, most specially people you consider dearest to you. So, even if you are hurting, and you are utterly disappointed with the person, you just have to accept the fact that the damage has been done, and no amount of ‘medication’ can heal the wound.
Really, it hurts knowing that after everything you've talked and bonded about, that person was untrue to you. Hence now, you don’t know who to trust anymore.
Expect the lowest from the people you think the highest of.