Speaking from my experience,I've felt that way once because of my first love.....that person went for army and asked me to wait for him to comeback.....i waited 3YEARS for him and can only talk to him once a week fir just 10 min, i did get proposed many times but i kept my promise...but then suddenly he started ignoring my calls and msgs plus he was thousands of miles away from me so it was hard for me to have any contact.....i was so devastated...turned out his parents found a girl for him to marry and he was getting married to her......i literally told him i couldn't live without him but all i get in return is to not interfere in his life....it's been 10 years now....i am still living well and actually did forget everything related to him as i promised myself.....so dear don't let anyone trample your pride, live your life honestly the right person will come to you and will treat you right