You could just file this under "torture porn". You could on the other hand try to acknowledge what it tries to do too. Put a revenge story to the test, with timelines overlapping. It should be clear early on, where this is leading and what the two main characters have on their mind.
The main thing is, that there are not really likeable characters here. Maybe one, where even our "heroines" say, that they thought she was cool. Still seeing people going through the stuff they do ... not to mention how convenient they seem to appear, with one surprise guest just showing up. With more flaws than any cheese you have stumbled upon ... there is quite a lot wrong here. And even a twist towards the end will not really elevate it on a much higher level
The main thing is, that there are not really likeable characters here. Maybe one, where even our "heroines" say, that they thought she was cool. Still seeing people going through the stuff they do ... not to mention how convenient they seem to appear, with one surprise guest just showing up. With more flaws than any cheese you have stumbled upon ... there is quite a lot wrong here. And even a twist towards the end will not really elevate it on a much higher level