will never get over it

I was talking to this dude for a few months and it seemed pretty serious. he fed me lies after lies, made it seem like he was obsessed with me and that i was the only one, just for me to open instagram and see that i was blocked and he was w/ another girl. Every single time i’m w/ a dude, i’m never the only girl. i cant get out of bed, am always crying, and just wish i could get an apology so i can say how i feel. anyone know how to move on and stop thinking abt it?