Thats Dorritos Bold ... But not in a good way

So, here's my perspective:

Person A wants a favor of person B.

The favor was asked a month ago, and the answer was MAYBE. Maybe, as so many of us know, is not yes. It's not no either, but it is most definitely not yes. Confirmation was not asked for until two days before the favor was to be meted out (and late at night, so not even a full two days before), and by this point it seemed obvious that person A had assumed person B really meant yes (which is obviously why person A left confirmation until the last minute). Also, at this point person A decided to let person B know that the favor would have to be completed very early in the morning. Person B, who often is easily pressured into things, said yes (albeit with reluctance). Person B did in fact express this reluctance, which person A tried to argue against (so as to get there way), rather than understanding the uncomfortable position person B was being put in (honestly, asking person B's ex to perform the task with them so person B WOULDN'T feel uncomfortable doing it is both desperate and low). The day after the 'confirmation', Person B was talking with persons important to them, and to the mode of completing the favor, and the persons informed person B that they did not think this was a good idea, and gave reasons. Person B decided to back out of the arrangement, but made sure to let person A know as early as possible. Admittedly, this was somewhat last minute, but since person A also didn't bother to bring the whole thing up again (or give all of the details) until the last minute, should be understandable. Person A was not understanding. In order to get their own way, and this is the bold part, person A went so far as to call up a branch of the GOVERNMENT in order to gain evidence against Person B's reasons for not going through with the arrangement, and proceeded to try and convince person B to keep with the plan. When person B still said no, Person A continued to try to coerce something out of person B, suggesting alternate modes involving person B's family members (and trying to impose on them). Person B said a final no, which no doubt did not sit well with person A.

Person B - good on you for finally sticking up for yourself. It sucks being made to feel like a doormat by your best friends.

Person A - If you truly feel that this person is your best friend, then why are you being so imposing? Why is "I'm not comfortable with this" not enough? Shouldn't you be more understanding where your best friend is concerned, and even let some things slide, even if it's an inconvenience for you? And do you have the right to feel angry for this? You friend has felt walked over by you for a long time, and hasn't been completely quiet about it. It is obvious that eventually the rug would pull out from under you. Is the fact that it happened at the worst possible time for you your friend's fault? Or did you get what you deserve?

The moral of the story is that you should respect and appreciate your friend's feelings, not try to continuously push them to do things they really don't want to do. Unless you really like driving wedges between you and other people.