The people on this site are terrible. Why do you all ignore my posts?

I am having a terrible time because one of this girl whom I like hasnt been replying to me on Instagram for the past 4 days. We have been knowing each other for 8 months and have been chatting with each other pretty much daily and all of a sudden from saturday she isnt even reading my texts. She is coming online and is online even now but no reply. I am 23 and she is 19 turning 20 next month. I am missing her a lot and often tears are coming in my eyes. And you all never even answer my posts. I get so angry opening this site and seeing no notifications. I posted about this girl not replying to me and feeling sad and still you all just viewed the post and no replies. Seriously you all have too much ego and are emotionless people. For the past 4 days, I have been feeling terrible even waiting for her in the bus stop for an hour yesterday and today in the bright sunlight thinking maybe we can talk in person and get to know what happened as she is in a different college but Idk when her college will get over so i couldnt meet her.