Lies and misunderstandings all over the place...what happened to that gyaru friend of hers? Did she just drop out of school because of the severe burns she took?
When a series stops being about the personal growth of the main characters and starts being about others interfering with them, that's a sign things are going downhill.
I know this is kinda out there, but maybe Izumi's trying to protect Fujishiro by shoving her deep inside the closet instead of being jealous and petty?
Like maybe she had some bad experiences with dating another girl or something (not that this excuses her or anything)