i genuinely believe that eventually bojack ended up reading books instead of watching tv or scrolling social networks (he is not very interested in it but he needs to spend pastime somehow....). and mr peanutbutter is almost always there to keep him company so... bojack reads to him and pb sometimes makes comments but most of the time he just listens and. in the end falls asleep (if someone with bojack's voice read to me i would fall asleep too). but bojack doesn't mind. he is also kinda used to discuss books with pb afterwards. and even sometimes chooses the ones he thinks pb might like (true love)
mr peanutbutter and bojack from alpha!au in general
i have some thoughts about what would happen if bojack and mr peanutbutter got together before the start of the show. @fandomfreakstudios have a wonderful post on this topic and i like their au very much. i just want to speculate on this from a slightly different angle.
i agree with freak's vision in many ways, but thinking about it, i've always found their relationship in such a scenario to be more messy and extremely ambiguous. ambiguous in terms of the fact that they themselves do not know who they are to each other… okay i'll try to explain
they meet for the first time at some event: an award ceremony, a party, whatever. then they see each other again, again, again, and in the end bojack reluctantly gets closer to pb - out of boredom, maybe - they drink together, chat about everything, discuss acting and so on. gradually they grow closer, their relationship becomes more trusting and intimate.
and before they knew it, they suddenly started spending nights at each other's places; mr peanutbutter recently divorced katrina, and he doesn't want to feel lonely, so all his attention is now focused on bojack. he became attached like a faithful dog (literally) and it will be almost impossible for him to let this man go, no matter what a jerk he actually is.
and bojack, who completely destroyed his previous relationship with herb, sees this. he doesn't reject pb when he becomes more intrusive for two reasons: firstly, he is afraid to ruin everything again, to lose a loved one, and therefore he tries to play a good friend; secondly, he likes this attention. he craves it. he longs to be wanted, to be admired, to be needed no matter what.
so, yes, their relationship is growing, and so is codependency. bojack tries to be kind, fair, supportive, but when he discovers how difficult it is - and most importantly, when he sees that his efforts don't matter, because pb won't leave him anyway - he stops. and, when there is not only an agent who will get you out of any trouble, but also a close person who is ready to love you no matter what disgusting things you do, and justify your behavior in any way, you stop not only growing, you become much worse than you were already.
nevertheless, he still has bright sides, some kind of concept of morality, and he is literally eaten up by guilt for what he is doing with their relationship. he, from time to time, makes some attempts to fix it - with well-known grand gestures - but it doesn't last long. then he gets tired again, realizes that everything he does is pointless, and turns to alcohol, drugs - everything, just to calm the pain and guilt consuming him from the inside.
mr peanutbutter also tries hard at first. he genuinely believes that if he makes enough effort, their relationship will be as happy and trouble-free as it was in his family, as it was on his native peninsula. he keeps ignoring all the red flags until everything turns into a real disaster. he still doesn't want to leave bojack because a) he is afraid to be alone, b) he is attached to him, he actually likes him very much; c) he feels sorry for boj.
we have seen how mr peanutbutter can behave in a relationship if he is really displeased or upset about something. eventually even his patience comes to an end, and maybe he makes the first attempt to leave, but quickly returns - either on his own initiative, or because of bojack's conviction that he will change. then everything repeats again.
this time, pb stops ignoring the bad attitude and goes on the offensive - he responds to manipulation with manipulation, to neglect with neglect etc. as a result, he becomes little better than his partner. they start quarreling constantly, it exhausts both of them. but that's all they have left when they just can't let each other go.
if we draw analogies, then this is something between bodiane, pb/diane and bojack/pc relationships, but i hope you understand the course of my thoughts.
bojack's career is still a failure, but at the same time pb's one is much less successful than in the original, obviously because of his personal life. well, now he has much more time to, for example, fight with his life partner again and eventually drive off to the other side of the united states together. for some unknown reason. they're sick to death of each other and yet still codependent. well. you know how it is
i could write more, but it seems like i've got a cold and i also want to sleep (whimpering whimpering) and the post already came out kinda long. so yeah. but maybe i'll talk about it later again
oh and i almost forgot
he was there that whole time
poor bojack… both his parents died, it must be so hard for him… yeah his mother was ehhh……. are we in the right parlour by the way… i wanna go home…. but i have to be here for him… it seems so difficult to make a speech at a funeral, bojack is doing good… WAIT WHAT DID HE CALL HIS MOM-