@
Kronix you got most of it right actually.
We don't know if Misato likes MC tho, like @
boag she probably feels she has a conection with him, however i have another idea, she probably sees a naive guy she can manipulate to help her deal with her issues, which is why she is leading him into hooking up with sensei, so she can have some blackmail material.
We also don't know if Sensei likes MC or if she is just trying to use him as a tool to get over her relationship with rapeman, i don't think she is a slut, but she is definitively not that good of a person (not her fault tho).
I am inclined to think that it is mostly the second when it comes to sensei, because normally there are way too many factors that get in the way for a healthy relationship to form between 2 persons that are in different positions of power, and that have different range of experiences (age), to top it off both of them are mentally unstable, immature, and the adult one of the relationship in this case is inexperience as far as human relationships go, and to make it worse she has grown bitter due to being a rape victim, and while getting into a consensual relationship may be an starting point to help sensei to grow and become better, dating her student is a step backward, so all in all, i don't think she likes him, she is just going with the flow of someone who is there and shows interest on her without trying to be "forcefull" as an starting point for her first romantic relationship, which is already turning badly for all the aforementioned factors.
As for Misato's boyfriend, he doesn't likes to beat people up, he likes to show up which is different.
Also the part about getting a boner out of self fulfillment was all on Misato's head coming from her own twisted way of interpreting the world, she is probably the one that gets aroused on self-fulfillment which is why she likes to manipulate people.
Misato is one of the worst human being on this series, and she is so far manipulating MC, her boyfriend, her friends, sensei, and who knows who else.