my girlfriend is ignoring me what should i do?

[Andrew]

First of all I can tell shes ignoring me because I can see when she reads my texts another example she makes snapchat stories and reads my own she posts on fscebook and instagram as well she ignores me for about 4-8 hours at a time and now it seems like we oly say good morning and goodnight now but when she does answer me she does it all nice and sweet as if nothing is wrong I have told her about this and she says she is sorry and she doesn't mean for me to feel that way but she keeps on doing it sooooo what can I do do you have any suggestions on how to get back at her?thanks for listening!