Ooh, some Yandere goodness. Well, if it really was just a misunderstanding and she has no idea how to approach a guy she likes, all one has to do then is to...'teach' her the proper way, no?
I must say though...The way 'Lust' and 'Fear' were represented in his mind...Especially the resolution (Lust winning) was just...Too good.
"I think I just stuck my dick in crazy"? Well...I guess? Shouldn't be a problem though, just don't do anything dumb and take proper responsibility and I'm sure everything will work out just fine.
Also she moved next door, so I suppose the next step would be moving in with you?
shes basically what a yandere character would be if there are no rivals. No rivals, no need to bring out Knife-kun. Also she's a bit of a kuudere. So she does try to control her emotions a bit. There aren't many kuudere yandere characters.