Imagine Alice does not like Bob. This is unfortunate because they are both my friends, and we are at a restaurant together.
I ask the party what they'd like. Bob remarks, "you know, I've really had a hankering for ribs recently". Whereupon Alice objects and rants that Bob 'only talks about himself' or some such other tendentious misinterpretation of Bob's comments - nothing Bob has said here or elsewhere reflects self-centeredness, but it is a useful opportunity for Alice to find fault all the same.
Is there a word for this kind of deliberate and incincere offense-seeking? I am not sure if 'tendentiousness' or 'fault-finding' are specific enough.