Pain in my heart. What a nice song that you can relate to yourself especially you're a broken hearted one. Everyone of us is bound to love and to be love in return. But, it doesn't mean that you'll never get hurt. You just need to be strong and willing to accept that there were things that can never be yours as what you expected to happen. When you love someone, you must learn to love yourself first before giving everything to that person so that whatever happen at the end you can bear the pain in your heart.
Don't you ever show to that person that you love her/him more than anything else, and don't expect too much for you not to be hurt at the end! Remember that true love is so hard to find! Just keep on moving and explore your horizon.