I will be meeting the marine I exchanged letters with meanwhile deployed, and he is a gentleman, I was just wondering if they behave like that out of sincerity, or just to get something else?
A little different but in general just like normal guys. There's work attitude then theres social attitude. Pretty self explanatory I think you know what it means.
You obviously act differently when you're at work than when you're out with your friends.
Same applies to marines, in fact it applies to everyone.