The reason behind many relationships end

In true relationships, it doesn’t happen. It doesn’t matter any obstacle, financial weaknesses, distance, if you are sure what you have about and what you are doing well into your soul then you’ll have peace and love forever. If someone leaves you, then you never had a real love, but you found one of the correct way to make yourself more stronger to go beyond in your future expectations. ~ Harel Nidul 

Many relationship end because once the person has you, they stop doing the wonderful things it took to get you.

Relationships end too soon because people stop putting the same effort to keep you as they did to win you.