My wife keeps asking for alone time but i rather spend it with our kids...?

My Wife and i are both 27 been married 7 years with three kids. Well i have been home from Iraq for about two months so i have been trying to spend a lot of time with my kids and everything because they didn't exactly remember me when i got home and i missed them dearly. Well my wife keeps asking for alone time with me and asking if we can let her or my parents watch the kids for the weekend so we can have some alone time but i honestly still rather just be with my kids and everything because i missed them so much i missed my wife to and i love her dearly just not sure how to delegate it i guess. Not sure what to do she wants to be Intimate with me and i understand that but at the same time rather be with my kids =/. What should i do? Advice?