How should I act I really don't know what he thinking?

his talking to girls thats what the "studies" mean equals girls so he rather be single and talk to other girls! guys are known for that once they start acting difffrent means they found another girl to talk to or are exploring other girls. i think dont give him a chance movee on you tried to save your relationship but in his part he let it died so dont get back with him cus i bet once he messes around with other girls his going to try to come back to youuu dont take him back!!!!!!