Alright, so the break-up is done

I went to the store because I wanted to order some items so before ordering, I asked my current SA if I could talk to her and I told her that I wanted to tell her in person that during her maternity leave, I met the XYZ sales associate and we really connected. I told her how much I appreciated her and I wanted to be respectful and honor her. She took it really well and thanked me for the transparency and the straightforwardness of my approach. She said that in the past, customers would go to different stores and open new accounts without telling her or switch SAs in the same store and not say anything. She seemed to understand and not take it personally. Toward the end of my visit (while I was checking out), my new SA stood next to my old SA and asked her, "Are we good? Are you ok with everything?" And she smiled and said "Absolutely!!"
So, it's over. I feel much much better and relieved that I did the "right" thing (according to my own subjective metrics) LOL Thank you everyone for all your time and generous input. I appreciate you all very much!