I feel like im in the twilight zone.

[sapster]

I just played a SNG where we played 3 handed for a seemingly very long period. Big stack had around 6k whereas me (sb when big stack was button) and bb had around 2ish. Big stack folded his button EVERY ORBIT while raising me frequently when he was in the small blind, I stayed alive by stealing blinds but became very suspicious and even made a comment like "bad cards on button eh?" and then accused him of cheating because he wouldn't respond and continued never applying pressure to the other guy. Am i overreacting or do you think this was collusion?