Is this collusion?

[jnh24]

Cast:
Hero, Friend, Boss, Boss'Friend, Boss'Bro

Background:
Friend hosts a weekly home game at which Hero is a regular. Boss wants to play so Hero invites hime. He turns out to be one of the worst player Hero has encountered at home, casino or online games. Boss is LPP and a huge donator.

The weekly game breaks because most participants are away for the summer. Boss invites Boss'Friend (a LAGish gambler) and Boss'Bro (an LPP who was been playing for 2 weeks). He also invites Hero and asks him to bring a few friends/roommates who want to play. Hero doesnt want to run over a $10 game so he invites only one, Friend.

Story:
$10 buy in tourney results in Hero and Friend splitting 50-50 when getting to heads-up. The chips counts were close and we didnt want to play heads up for an hour while the other 3 sat around watching. We then played SH limit, .25-.50 for an hour or so. Hero and Friend make a few bucks, Boss'Friend doubles his buy in while Boss'Bro and Boss drop 1 buy-in each. During this game, Boss'Friend, the LAG, observes that Hero and Friend do not play many, if any, hands agasint one another. Game ends and Friend invites all to play in our home game when it starts back up, if they are interested.

On the drive home, Friend mentions the LAGs comment. Hero thinks it was simply an observation from a guy who admittted he will see any flop and saw that each of us played very few. Obviously, we wouldnt play many together. Friend thinks LAG may be implying collusion.

Boss walks into work the next morning and opens with "Did you enjoy taking our money last night?" Hero laughs. Boss states that "It was just like in Rounders. We were talking about it after you left." Hero thinks WTF? and asks Boss if he really believes that Hero and Friend cheated/colluded in a $10 home game. Boss shrugs and gives a look along the lines of "I don't know; you tell me."

Questions:
Is Hero wrong to be pissed at the Boss' implication of cheating and/or colluding, especially because the two work together in a job where integrity is valued very highly?

Should Boss be invited back to regular home game if he truly believes he was swindled? What about Boss'Bro or Boss'Friend?

Is it cheating or colluding if Hero expected that he and Friend would finish in the top 2?

Is it cheating or colluding if Hero and Friend did not play many hands against each other? What if Hero and Friend always avoid each other in any game because there is mutual respect for the other's skill? And is this mitigated by the fact that, if heads up, Hero and Friend contract a case of FPS?

Thanks guys