Why are the some people out there who are so emotionally cruel to others?

You know one of the biggest things to me is someone who can just be so cruel manipulative and completely disregard someone’s feelings because they don’t like the person for whatever reason or isn’t getting something out of the person or isn’t getting enough of something from that person. I can only speak on women in this aspect because that’s all I’ve dealt with but man taking someone’s money making them fall in love with you watching them spend more just to keep reaching out cause they’ve gotten emotionally attached or using them for attention or for whatever other thing you need them for and then turning your back on them because they’ve outlived there usefulness too you is cruel. You are a shitty ass human being if you can look at all that and just feeling nothing and I’ve met so many woman who are like that it’s like they have no soul you can try to make them understand but they just don’t care at all. There are literally people who walk around everyday life who are like this and it boggles my mind I’m an emotional guy I can’t help how I am even worse I’d say I’m an empath. When I see that I almost feel sadness for there existence that is just a sad way to live your life. Or maybe I’m the sad one for feeling how I’m feeling for people like that I feel everything and the slightest slight toward me is like a knife in my heart. So yeah I tend to look at stuff like this with such distaste and disbelief I don’t get it I don't know if these people were heart so bad they have chose to walk this path. But It’s weirs despite how often I get hurt so badly I can’t help but reach my hand out cause I know I’d want someone to reach out to me. I probably sound really fucking stupid but I can’t help it it’s weird it’s like not even a question for me it’s just something I know in my heart I should do I don't know.
Why are the some people out there who are so emotionally cruel to others?
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