I think that in REALITY, when a woman gets involved in an ongoing EA, it's usually much more powerful (or "worse," if you must) for all the reasons you state about what an emotional connection means to a woman. Couple that with the fact that if left alone, these EAs usually become PAs anyway, now you've got the worst of all.
However, most men don't understand that. Most men do think it's "just" an EA -- to their great mistake. In reality, a one- or even a three-night stand, with little emotional connection, is far easier to bust up as far as affairs go.
