Walking in the rain so no one can see me crying..

Im trying to analyze every angle and situation ; Trying to find an explanation because it's getting aggrivating why my relationships never seem to work out. I'm beginning to worry and doubt if I'm even able to detect if he's the right one or when to stay or when to run. When will I see the sun shine its light on my heart and help me ease the pain because I'm getting so tired of the rain.