Arato and "Love"?! ... uh ... he loves himself?
Jokes aside, Shizuka said, that he NEVER loves anybody, that`s the reason why she was ready to be with Satoshi ... even if that means some illegal stuff, like drug and Kendo imprison (which will backfire in 2.3 Kendo ending, when we`ll see full release). So, he never will be in love relationship with Mary.
"Only Kendo to touch" - you need, as Satoshi, forgive Kendo for his acts, then, as Satoshi, drink up full cup of druged juice. This will unlock the option to interfere with Kendo in last moment, which will stop Arato. Then, you mush choose "Kendo Ending 1" route, where Kendo x Mary ... but don`t activate Shizuka events after that, because this will transform "Kendo Ending 1" into "Kendo Ending 2" and, for now, they don`t have 2.3 Ending ... which means Kendo x Mary "bad end" (with or without Satoshi x Shizuka)
