Got ghosted

I got ghosted recently by this guy I decided I’d finally give a chance to and I’ve been sad ever since.. it happened this weekend. The thing is, it’s always been like this either of us leaves each other on read/delivered and then we don’t talk for a while but this time I’m sad either bc my period is coming soon or bc I know he’s looking for something serious and then he just ghosted me all of a sudden and was out on the day we were supposed to see each other.. which has also happened before so I don’t know why I’m sad and crying over this shit