When in love with someone, they must be your priority and paramount concern in life; and there should always be reciprocation; any other scenario creates a relationship molded with anxiety.
You climb from the misty valley to the top to see the sun; this time the top is covered with fog; you go back to the valley to see the sun! That's life! Wisdom is to anticipate the moves of life in advance and thus not to run around like crazy!
Sometimes you go to the top to see better, but the clouds appear and you can't see anything anymore! Life is the difference between your own plans and the plans of life!