How to heal from being strung for a year?

After being strung along for a year and a half I’m hurting and a part of me has almost given up on men all together because it has not happened once or twice. I have kept myself busy with my studies and started new hobbies however this guy still manages to find a way to try to work himself back into my life and at times stalk me. I have blocked him. I have come to a realization the last time he had spoke to me that it was never really love at all but rather he used me. Just looking for any advice on how to move forward and not become so bitter. I have accepted long time ago that it was never the right person. I wish they were honest to me in the first place and not coming back into my life when their relationship with other people weren’t working out.
How to heal from being strung for a year?
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