Someone who really loves you sees what a mess you can be, how moody you can get, how hard you are to handle, but still wants you in their life.
When someone who tells you he/she loves you but leaves you as soon as some problem arise, it is not love but simply infatuation. A person, who truly loves you would stay by your side, supports you and appreciates even the little things that you do for him.
If you are all mess up, he/she will do everything he can to help you get back on the right track. He won’t simply give up and let go of you. He/she is willing to do sacrifices for that person he loves. He/she would never gets tired of showing you how much he loves you.
So if ever you find someone who would take a bullet just for you or never leaves you, who could love you unconditionally without asking anything in return, never let go of that person. In these times, it is rare to find a person who could love like that. They are near extinction (I think!) ^_~
With true love does not find fault on your partner and giving up is never an option.
Disclaimer: Photo used in this post came from Google