I agree with KMC - it is hard without context. Sound guys especially can be a touchy breed. Sound quality is largely subjective, but there are some very clear objective measures too. If your report deals with the objective (called cue & he took too long to go, wasn't paying attention, did not turn down X's mic when he left stage, 7 audience members complained about the sound in the room) - and phrased it objectively, then all's well. If your report mentioned "I thought XYZ had too much kick drum" - then you are going to get bitched about.
Technicians are worse than 14 year old girls when it comes it to gossiping and bitching and moaning (I say that as a technician) - it is largely a coping mechanism. I don't know how far your relationship has deteriorated, but it may help to phrase reports as suggestions more than as comments or commands. It is clear you are dealing with ego - unfortunately that may be something you have to just put up with on this run.
I would try and sit down with the producer however and swing them around - provided your report is accurate and not overly dramatic then facts are facts and he should support you in that matter. He may however be trying to keep the peace - by asking you to tone down your reports. If they are relying on an intern for audio, chances are they are having issues filling the role with the budget they have - so it may not necessarily be that they are on his side, it may just be that you pulling back on the AX reports may keep the show running.