I bet Oscar is the kinda guy that even if he didn't the person he liked and/or find out about somebody's important secret (that people would be super upset that you didn't tell you're bff you're important secret because they always make it about trust instead of the real reason they kept the secret) he'll super understanding and be supportive, even if he's upset that mochi didn't tell him, Oscar would understand immediately. And that he'll still be there friend.
Anonymous

YEAH HE IS!! he actually wouldnt be that hurt if at all, mostly because him and mochi are close, but not her and lime kind of close, especially since he was gone for like. 5 years?? 

his reaction would be more like “Holy FUCK I WAS FUCKING RIGHT!!!!!!! I WAS RIGHT ALL ALONG!!!!!!!!!!!!!!!! YOU GUYS THOUGHT I WAS NUTS BUT I WAS ON TO SOMETHING!!!!!!!!!!!!!!!!”