Hello, thank you for the nice words and for enjoying the game :)
I recommend checking the "Walkthru Videos" from above, last video (from xvideo https://www.xvideos.com/video.uableab556c/slavebar_eroge_walkthru_part_2 ) at 21:01, to check if the bunny taming is done correctly (near the green totem, with 3 or more stamina), aswell as the follow action via h cancel (0). Being unable to interact with a fapet usually means that it is not tamed, or that either of player/fapet is out of stamina (a HUD message does appear in that case saying 'Not Enough Stamina' ).
If the above doesn't help, or you get any other issues, feel free to notify me
Cheers,
~NK