Fell in love with Virgo guy and he broke up with me?

I'm a capricorn girl 23 and my guy is a virgo 26 y.o thats pretty much lived his life and i thought was looking to settle down..close group of friends and never brings just anyone home to meet his parents..nothing wrong in our relationship..didnt see each other during week..only weekends fri night sat and some of sunday..gave him lots of space never went through his stuff..never got psycho jealous over him..all around nice relationship his friends love me i was the second girl hes ever brought him to meet his parents..then one day i found out he was talking to some chick on facebook..about and meeting her etc etc telling her he was single giving her his number he crossed the line..i broke up w/ him after i found out but when i confronted him about everything he turned it around on me and said he wanted to be w/ me still but he needs time to figure out exactly what he wants to be single or in a relationship...after putting already 8 months into the relationship and everything goig well cept for his cheating on me! now i want my virgo back but it seems like hes not so interested in getting me back anytime soon...we havnt talked or seen each other for a week and he recently txted me if i wanted to go have dinner w/ him and i blew him off and said i was busy all this week because i thought thats what he wanted is space..and to still"chase" me but it doesnt seem like anythig is working to get this guy back and make him realize i wont wait around..he seems to think im a sure thing or something...whats going on inside this guys head?? and why all of a sudden did he cheat?? no signs of him being dissatisfied in relationship in any way.. i know he cheated emotionally on me and mentally but i want him back...how do i get him back? and why is he acting like he doesnt even know me or miss me or anything we had anymore?? he definately did care about me because his family is very traditional and he wouldnt just bring anyone to meet his mom and parents and stuff...so obiouslsy i meant enough to him to do that but now hes not even acting like getting me back or that he lost me...what do i do?