There have been far more inane things discussed on this forum, really. I'm not looking to take this absolutely seriously, just have some fun discussion.
In THAT case...............yes! Yes they are the most likely to cheat. Bastards!
No seriously, I think ENTP's (like INTP's) are a fickle bunch who make it a point to make sure that the person they are going to be with really suits them and satisfies them in a lot of different areas. When they finally end up with someone long-term or in marriage, I think it tends to work out because the choice was well-thought out to begin with.
This has absolutely nothing to do with types. As types are preferences, not definitions.
Again, this goes to show that we take MBTI way too seriously.
(I'm not blaming you, the placesyoullgo, I'm just stating an observation to lead back to my position of MBTI)
Is it that by its indefiniteness it shadows forth the heartless voids and immensities of the universe, and thus stabs us from behind with the thought of annihilation, when beholding the white depths of the milky way?