Boyfriend went home

Sarah
My boyfriend is in the military and he went home for 10 days. He has been there for a few days now but he just hasn't showed signs of interest of texting or calling me. I do understand he needs this break, and I won't be asking him why he's not communicating with me. I just feel very confused since whenever he was here near me he couldn't leave me alone. He did tell me the first days that he was going to drink a lot, but I'm worried he does something dumb while drunk, like cheating, because apparently there was some girls that liked him out there. I'd love to think he's just having lots of fun and respecting our relationship, but whenever I go out I at least say good morning, good night, or I'm okay.