Would you leave someone you loved because they sweat a lot? No. But you might lose your attraction for them if it's all they talked about and seemed uncomfortable around you because of it.
Tell her about your problem with confidence and without seeming afraid that she'll leave you. Don't make a big deal about it, and try your best to ignore it when it happens around her. Or maybe crack a self-effacing joke about it, but just one.
Probably the only thing that's gonna make her leave is if you make this problem seem like it's more important than your relationship.
Good luck, Bosnianac, I know it must be tough.