Why I'm not interested in love anymore?

After loving then breaking with someone, even meeting some bad guys who cheated on me and left without saying goodbye, my heart now seems to be frozen. I don't want to fall in love with anyone as I'm afraid one day I will suffer the pain again and I can't stand that. No one can have my attention and I feel nothing when someone show his interest on me. What I focus now is my career. However, sometimes I do feel very lonely and really need someone to share my story, my feelings and to love. How can I resolve this to have the trust on love again?
Why I'm not interested in love anymore?
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