Injured sparring

So I went for my second mma spar last night, I have roughly a year or so of going to a boxing coach 1 on 1 every couple of weeks only and only started sparring here and there the beginning of this year.
I was feeling more gassed than usual after warm ups and after 3 rounds of sparring with partners I was cooked and had nothing left. I sat to the side to catch my breath and the coach/owner who is friends with my boxing coach called me over and wanted to work with me. I explained I was gassed and expected us to light spar especially since it's my second time ever and I do not train any Muay Thai.
But I got rocked with a body kick fairly quickly and overall just got hit with some pretty hard shots to the point where I was done. Majority of the spar I was swarmed and overall defenseless just due to being gassed and the vast skill difference.
Ribs on my left side are extremely painful now and injured pretty bad and I'm debating if I want to go back. IMO I don't think I should've gotten that much intensity when I clearly stated I was exhausted already and it's well know I'm green. What is everyone's thoughts on this? I'm heavily considering not going back again as this is messing up my main sport of training for a marathon currently.