My girlfriend is very single on social media

My girlfriend of 8 months has drastically changed how her social media looks. She used to post about me all the time. Now she makes an effort not to show me in her stories and posts things like “why cant I stop catching feelings for anyone who looks at me”. I told her it bothers me and she tells me She only does that because I don’t post about her. This feels toxic as fuck. Any advice or insight would be greatly appreciated.