I see a Chiropractor and a Physiotherapist weekly for a painful skeletomuscular condition and have done for years. This is necessary to maintain mobility in my spine and reduce pain. I've been with DP for 8 months and he has known about my condition since we met.
Last week he came with me to the appointment for the first time. I didn't consider it a big deal, there is no reason he has never come with me, I just usually go when he is at work but he is off this time and came along.
He has absolutely flipped his shit, calling me a tart, naive and all sorts and referred to the clinic as a fucking perverts paradise.
The reason for this little tantrum? They are all men. And it never occured to his tiny brain that in order to have spinal adjustments, I would have to take my top off.
Apparently I'm having an affair with them. All 3 of them, possibly at once, he wasn't clear on this bit and the massage therapist undoing my bra constitutes sexual contact which is cheating. 
For clarity, the (very professional) massage therapist has me remove my top and then lay face down before unfastening my bra and leaving it open so it still covers my breasts. Afterwards he wipes the oil away and does it back up before I get up. At no point does he cop an eyeful.
I'm clearly having an emotional affair with the Physio because we were talking about films that had made us cry while he was twisting me into unnatural shapes and sticking needles into me because apparently men don't do that unless they are interested and the Chiro was disrespecting him by hugging me when I walked in. He hugs everyone and flirts with anything with a pulse! It's just how he is.
Oh and it's not even legal for me to be half undressed alone in a building with 3 men.
Give me fucking strength. AIBU to tell him I just don't have the energy for this shit and to grow up or fuck off?
I have been going to this clinic every week for years! I have known the 3 of them for years, especially the Physio who actually saved my life a few years back by talking me out of suicide and confiscating my medication for 4 days to make sure I didn't take too many of them. None of them have ever so much as taken an inappropriate glance let alone a liberty and are completely trustworthy.
He will not let this drop. It's doing my head in. Constantly trying to trip me up with probing questions about them and my treatment. I am seriously considering telling him to fuck off to his mothers.