There was a lot of breeding action going on I have a video and she wasn't trying to sting him but I had to leave for work. Her red like that is what I home to.
Probably just worn out after breeding attempts. He may have been stung and she looks to have received a graze of some sort from the action. He will be fine if he was stung so long as it was not in any vital areas, but he will sulk for a couple of days. She may or may not have been tagged. Only time will tell. Did you notice any sperm plugs laying on the sand? Some times you see a plug in her or on the sand, some times you see sperm literally everywhere in the tank and sometimes nothing at all. There is no definitive way of telling until after around 8 weeks of the breeding attempt.