Sometimes when having a minor disagreement with someone special , look at a minor thing and over react and over complicate the situation

I’ve been in great long term friendship , which has lead to a special more loving and caring open relationship with an amazing younger woman , she is interesting and fun , we share some great less common interests , but our beliefs are far apart , which we both respect one another for , in 18 months we have bearly had a sour or crossed word , if so it’s al ate Been respectfully resolved .
But today we were discussing a mutual friend and I felt this person was jealous of our friendship and indirectly causing ill feeling almost us , I said to the woman I felt this individual was dripped honey swet words in her ear , and felt uncomfortable with it , this escalated into a kinda message rant , I said some thing out of order , but more regards to her more the mutual friend , now I feel shit for putting her into this position , between us , but I stand by my feelings toward the third party , she says I’m over thinking the situation and looking for something that was not there , I’m not sure tbh