"I will not share my wife" sounds controlling to me, like she is your possession. I like the 2nd one much better.
LOL, we actually took a poll on this, on another forum that I belong to. LIKING the statement were most of the women, and all of the "alpha" -type men. The main group DISliking it were the more sensitive males.
I'm actually, IRL, more of the "nice guy"/sensitive/pleaser type than I am the "alpha" type. But I found it VERY interesting that so many of the WOMEN really liked the statement. Several of them commented how it made them feel safe; cherished.