This guy I used to like is a family friend. We flirted and hung out for all of quarantine. He asked me out serval times, but never followed through. Quarantine ends he takes another girl out. They start dating, I’m heartbroken. I finally heal from this, 4 months later he messages me and starts flirting. I said don’t you have a girlfriend. His response is that it’s an open relationship. I didn’t respond I just left him on seen. Wtf is wrong with him. You lead me on and give me false promises. Then you go for someone else and try to come back and flirt with me. He did this twice in the past week. Can men explain this to me?