DEPRESSION. Is ruining my personal life?

Personal life and professional life are two entities which are interdependent for any human being.  If your personal life is not happy or incomplete eventually you will start messing up at work as both these lives are managed by your mind. It is time for you to be very assertive to take a call in the interest of your own happiness. The way you wrote, I feel that you are all set to  ruin your personal and professional life.  Love and care is reciprocal and there cannot be one way. You love him for something you saw unique in him. Maybe physical, status, character, the way he deals with things  (it can be one or more of these ). End of the day if that person is not reciprocating the lovely you need to reconsider and move on. Move away from your emotional domain to intellectual domain and do a self assessment of all pros and cons.

If required more help, consult a Counsellor