Would it be a serious relationship or a joke? sorry tht is long?

Well how can i explain my situation haha. Once upon a time i meet this one guy "sophmore year" at a cl however the way we meet it wasnt normal it was weird. lol That day i had chorale and he had guitar cl yea yea i am a shy girl back in the days lol. So one of my guy friends talk to him you know and we were at a practice room dark and me and my friend friends we started kissing like so good. (gee just thinking about it makes my heart beat faster). So on so forth then one day everything became a habit kissing everytime we saw each other no matter what until one day i saw him hugging one girl all weird n i stopped. He would txt me when he was sick "babe i am dying" n i would say "nope dont say tht silly". Anyways haha we werent anything. Then that summer he asked me out (became a junior) and we drastically got a job at the same place. Yup we were together whoo hoo until one day he dumped me for a dumb game "Prototype" (gee man geniouses). So we lost contact until this summer we started talking again yaay he graduated tht summer and i am a senior workin. He asked me out this time like a full grown up man "unbelieveable" and then we found out so much things that we were alike and some we werent. Summer was the bleep. So that summer was magical we talked of a family, if i would support him if he would live to the marines, etc and i say yes. So he went to Dallas for couple of weeks with his mom and grandma. He came back we saw each other. That day was like the most wonderful thing in earth, we sat under the star, we kissed, we talked about everything, he hugged me wit a pion and made me feel safe, the rest i shall keep it to myself sorry.2 days later we got on a fight pretty iintense n dumb fight which i thought it was whoa. so i thought we broke up and nope we never did we were just upset at each other. So the last day he was in town he asked me "would you see me the last day b4 i departure to the marine boot camp?" n i said" maybe" but that day i had to go to school n told me to ditch and said no so we didnt c each other.However that day was unforgetable cuz of flowers he send and phone u knw wat lol which resulted a good one. Now its been a month havent tlkd to him cuz he is on trainning and his sis didnt pay his phone. I tell my friends i miss him so much and some of my friends tell me "really u r goin out wit him n havent dumped u like tht quick" n i say no why n they tell me he is a player n i say i knw but ig now he is changing cuz he realizes life goes fast n wants a fam. But now my issue is 'would he come the same way he left, does he think of me, is it serious, does he love me, etc"