“My theory is that this is because military men are (a) romantics and (b) sufficiently certain that, just by enlisting, they’ve proved their manliness. Expressing love for a woman is an extension of their personality without exposing them to the risk of losing their “man card.”Meanwhile, liberal men already have a very tenuous grip at best on their man cards. Getting mushy about their wives might be something these publicly ardent “homophiles” (“I love gays, even thought I’m not one myself of course”) fear is “too gay” for them.”
Source: Are members of our military the most romantic people in America?