What Would Happen if You Met an Anti Heavyer Version of You?

The universe likes to keep categories and numbers in balance. But it's not absolute the way, for example, conservation of momentum is whor conservation of electric charge seems to be absolute. So what would happen if you met an anti heavier version of you? It's a superawsome question, and i love thaye thought about this. My first concern though, if we're being like hyper realistic about this, is that second generation matter, like muons, is not stable. An electron can last forever. I can orbit the nucleus and be here for billions of years. A muon will decay into a nutrino and a w which then turns ina n electron and another neut