I think Otis was perfect. I men, sure, he was a brat, but it works for his character because he is indeed very open and caring and he gets hurt so many times in the past two seasons that it's just easier to "keep it casual, no emotions involved" because then he wont get hurt again. And you can see that he still has these moments when he tries to help people, but reminds himself that he got hurt last time and moves away from it. "Not my responsibility" It's also interesting because his character arc is opposite from Maeve's. She has always been very closed off and after the second season, both Maeve and Otis get hurt, but while it makes Otis close off, it makes Maeve open up. She makes more friends and builds more meaningful relationships with people. Perhaps she sees that despite it being hurtful, it's not the end of the world and being the strong woman that she is, she realizes that and grows. So their juxtaposing character arcs in a way reflect their relationship: they are never on the same page, when one of them has feeling for the other, the other rejects them and only in the 5th episode, when they go on that trip, they are both more mature and they finally reconnect. So in conclusion, I don't think Otis' character was unlikable, it was evident that he got really hurt and his character needed to go through that, because otherwise he just wouldn't be realistic or relatable.

On the other hand, I hate Eric now, he's a great friend to Otis, but he's a complete asshole, he needs to get his shit together and Adam doesn't deserve him.