There is actually a thread of some bandomen having actually a kink for that (its just some hundred replies thou, so not a lot)
Also Lime got once accused of being a lolicon from a foreign fan (you can find it in the kizu thread of the mh-back up) And according to what i found, he likes girls that are smaller than him. And then user started to say he gotta date teenagers to find someone smaller than him.
And here we go with host-lime
(The photos that went over the link are deleted apparently, so i took the link out)
Tsuzuku/ Genki has a Borderline Personality Disorder (in short BPD). He actually talked about it, if i remember that right.
And here i wanted to add something out of my own repertoire, so no tanuki rumor or anything.
Literally just my own bla
Accounting that Genki has a disorder, it might be explainable how or why he seems to turn his back on Koichi. One of the 9 criteria for BPD are unstable realtionships. Partially because People with BPD, think in black and white, you are either a good person or a bad person, there is no inbetween, but people can change inbetween it depending on what they do, or how they deal with the person that has BPD. Now there is a thing people with BPD often do, splitting. Basically people that our brain has categorized as black, bad, we will avoid all contact with them, till we change our mind.
Now you can also guess that behaviour like that will also have a effect on the other person. It must take a toll on a friendship or any other kind of relationship over time.
Also there had been rumors of Tsuzuku/Genki hitting Mia and Meto in the past, which is explainable with his disorder too. (But it doesn’t excuse it, just to make that clear ) Because extreme anger can be another point of BPD
So that Genki talk is literally just from my own experience with the same mental illness. There is a chance that everything is different, but because i know the illness form other people describing it, i just feel like some of the stuff you hear of him can be problems caused by his mental illness 