Why does it feel like a breakup to leave a service provider?

I am having the hardest time leaving my nail person after 3 years. They completely went rogue & did some designs on my nails that I hate. (yes I could’ve said something at the time, but I felt awkward). I’m going on a trip tomorrow & there’s a small chance there will be a proposal (always ready ya know ha iykyk)… and I’m sick about having these as my potential engagement nails, they are terrible. I have someone I want to go to, BUT WHY DOES IT FEEL SO WRONG TO LEAVE THE PERSON I HAVE BEEN SEEING FOR YEARS?!!! Like why do I feel so bad…?

Edit; this is not the first time he’s gone rogue, his style is flowing in the opposite direction of what I like. I showed an inspo photo, he did what I asked, and then some. we’ve developed a friendship, he’s a private studio, I feel like I’m taking away from his income by leaving & that’s just how I feel. it’s not like I just went in there with no inspo photo and was like yeah give me your freestyle.