Love yourself, cherish yourself, and love yourself well. If he who you believe is good has departed because he has the heart to betray him, then do not keep in mind his departure.
Do not you fret regretting what has happened, really life is only once, do not just use mikirin already ngingkarin promise.
Sick? Yes it will be very painful if belief is denied, but whatever it arises from your pain, just believe that after this God will give better.
Remember, there is no bad destiny, it's all good if we want to process it into a great lesson in this life.
Do not be too sorry, especially if the error came from him not you. And when you ask why he left? That's because you always ask for the best, and he's not the one.
Then if your belief ever denied, have forgotten and ikhlaskan. Be assured that after this there will be new people who will appreciate you more.