Don't really think I'd be upset about emotional cheating, because you can't control how you feel.
I'd be more upset about physical cheating.
I guess, however, that everyone is their own person. If my girlfriend wants to cheat, she can. It would be at least 50% my fault if she did. I don't want to tie her down to the extent that she feels like she doesn't have a choice.
In short, I would rather she wanted to be with me than make her cheat by continuing a fake relationship.
I'd be more upset about physical cheating.
I guess, however, that everyone is their own person. If my girlfriend wants to cheat, she can. It would be at least 50% my fault if she did. I don't want to tie her down to the extent that she feels like she doesn't have a choice.
In short, I would rather she wanted to be with me than make her cheat by continuing a fake relationship.