Relax Yamel, if you two are married, he should qualify for base housing right there in Goose Creek. So, you two can live together and he can pretty much walk to school. There is no leave between boot camp and A-school, but he will have a few days of admin business before he starts class. At boot camp, whoever shows up at Great Lakes can spend time with him, regardless if they have tickets to graduation. He may have to stand one short watch (about 2 hours) in the barracks after graduation. All of his loved ones will get to spend time with him on "liberty weekend".
Sea time is a different topic ... It depends on his ship or boat. His first ~2 years will be in school. The other 4 years depends on his type of command. Since I'm a former surface sailor, I can only give you surface sea time advice. What are his intentions?