I’m not a rose gold fan in general and I would say it’s a bit of a pet peeve of mine too to mix the yellow gold with rose however from online photos and what I remember of my friend’s 2 tone, the rose gold was not too pink. My e-ring is platinum!
For me the RG blended into my skin quite nicely, and I liked how that looked. I found the SS one too stark on me when I tried it in store.
If your ering is platinum imo you could wear the 2-tone with the rest of your YG jewellery, because your left hand would have the watch and your ering, where there’s no clash!