My ex boyfriend and I have been broken up for 10 months and I eventually moved away because it was a very bad breakup and he got into a new relationship immediately with a coworker. He continues to this day to post things on social media aimed at me (passive aggressive, negative quotes about relationships etc.) or things directly in competition to the things I post. He was the one who left and has been in a relationship since 2 weeks after we broke up and is "in love and happy with his soulmate". What could this mean?
To clarify, by negative things I mean things about previous relationships (I was his only relationship) and by competition for example, if I post a picture of a flower he will view my story then post something with a flower. If I post a picture of me out with a friend (not even male) or family member at dinner he will post a picture of his girlfriend at dinner etc. I'm just looking for some input on why he is acting this way. I know I should do the whole block and delete option, I am aware that it is the best route it's just very hard for me to cut him out of my life since we were engaged and together for 14 years (I'm 32). Thank you!