I think i ruined my relationship......

My husband has been asking me for a 3 sum for a while and given the fact our 6 years is in 2 weeks i reluctantly agreed. But im disgusted to look at him now!! Im the only person who wasn't "taken care of" because the whole situation was a turn off for me (yes i ended it immediately but the damage was done) i was signalling him to stop but he kept going even as i got up and removed myself from the situation. I love this man he's been my rock the last 6 years and we have 3 babies together but im so disgusted none of that matters and im seriously considering ending it over this! I plan to talk to him about this but I'd like advice on how to approach it?