Some people and situations are worth the wait and effort, as long as we see some results... sometimes it is worth it to go through the motion and the storm that life gives us, but sometimes we simply have to walk away. We just have to know in our heart who is worth it and who is not. No relationship ever survived with one person being the one that sacrifices everything nor only seeing what we sacrifice. Never resolve any issue evaluating  what you have brought to the relationship, look at what that other person has sacrificed and then look what you did.  Some storms are worth the battle and others we simply have  to walk away. Just make sure you don't walk away from the right one, because in matters of heart, there is no take backs.