Did he use me for sex?

Anonymous
He was here for the military. I met him on Saturday night. Saturday night he seemed really into me kept looking at me and was calling me later that night begging to come over and see me and I told him no because I was going to sleep, but he was begging for me to give him my address just to see me and sweet talking me telling me that the look when we first made eye contact was something special.

Sunday after work he was waiting outside my work and wanted to hang out, we hung out on his base and we ended up kissing and he was being really sweet holding me and looking up at the stars

Monday I drove out there and hung out from 2-6 in the morning when he had to be up at 8 and he was calling me his baby.

Tuesday we went for smoothies when I later found out that he wanted to be with his friends, but he kept calling me his future wife to his friends and cousins, then we hooked up (bad idea on my part) but he asked me like 5 times if everything was ok and cuddled with me afterwords until about 3 when he had to be up at 6.

Wednesday he came and visited me at work and was late getting back so he was supposed to go home thursday morning but had to stay another night. He waited for me to get off work and when I got there he was so tired since he got no sleep the past couple days but stayed up until 3 in the morning again for me but we hooked up again.

Thursday we hung out again and hooked up and of course was falling asleep but he stayed up for me. I cried when I left and he said it wasn't goodbye because we woud see each other again soon but didn't seem as upset as I did. Also this night he was kinda telling me what to do and wasn't really giving a sh*t.

Now he's home I haven't even heard from him at all and he's giving me one word answers. Did he just want sex from me? Did he use me? Or is he just busy because he's home? why did he go from sweet talking to nothing? I'm scared I made a HUGE mistake.
Updates
+1 y
The reason I had to keep driving to see him is cause he didn't have a car so the only times he could come see me is when he had a friend willing to drive him
Did he use me for sex?
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