For me it's got nothing to do with mixing metals but with mixing styles. The Love is actually a very masculine pipe cut ring that is rather wide, I think about 3mm? Most modern ER styles are more delicate or antique vibe and they just do not mesh well IMO with the love. Also, with the Love being already 3mm thick stacking that with another thick ring or rings is a lot of width on the finger. I know that I have slim but short fingers and I have learned the hard way that 4mm is my limit no matter how many rings are stacked. I would highly suggest you try the Love on with ER styles before you commit. Buy a basic sterling pipe cut band in the same width as the Love and try on to your hearts content. Best of luck!
This exactly!