Again, no one "stopped talking to females". That's your projection. And yes, Marines know they're not marriage material.
As for your opinion that it's a "bizarre attempt", well, that's your opinion.

Bizarre, you think the Marines are talking to, dating, and marrying females that they know are not marrying material.
Why would they be marrying and having families with women they know are not “marriage material” as you describe their girlfriends and wives?