Something I think young men and women ought to know.
Every woman or man is replaceable in a relationship unless we decide to make them irreplaceable. You see? The guy or lady you are in a relationship with had options but chose you. It becomes a problem when you interpret his her love as just a sign of desperateness.
Often, people ( young people) begin to feel too important when their partner loves them so much and begin to stand on that same love to toy and maltreat the one who shows the love. Be careful, the one who loves you so much may need you so much and may be deeply hurt when you disappoint.
But also remember that there are options and you were chosen.
Just because it is not right for your relationship partner to keep jumping from one person to the other doesn't mean that you make him/her feel and look a helpless prisoner of your love world.