What happens when you become attached is that you tie things together in a particular inaccurate way. You may tie yourself up too tightly in how another conducts his life.

When a great love comes into your life, you feel more worthy than you did before this great love came into view. By the same token, when a great love leaves your life, you feel less worthy.

You are not worth more nor are you worth less. Your worth is not dependent upon someone else's appraisals or preferences at any one given moment.