I love him but im startingto question his love for me.....?

hello my bf and i have been toghther almost a month now and he was the first to say he loved me,way befor we got together i asked him has he ever been n love he said no he jus would say eh loved the girol to make her feel good, a week ago we had a problem with when girls on myspace r telling me he has been sending thme messages about going ouit with them on the DL (Down Low) and eatin em out i didnt belive it at girst but the 5th time i got it i stung like hell so i confronted him and he told me wat was really going on and that he would neva cheat on me whith any of them and that he loved me and if he was ever to cheat on me it would have been wioth this girl who he chose me over her i belived him after i talked to that girl n everything was fine atleast i thought it was, when school started we couldnt see each other as much but he is muslim so this week he had no school bcus of a holiday and he kept telling me that would be our time togehther..well the only time we got was once this week we spent 2 hourse together first on my porch then we went to a lake we like to sit at after that i hadnt seen him and he dosent answer my message's on myspace sumtimes he reads them and dosent reply but others he just dosent and answert my friends she sends him message's purpusely to see if he answer..i kno this sounds stupid but for sum reason i feel hes keeping sum thing or sumthings from me and its tearing me up inside we where supposed to meet last night in my basement but he never came bck onmyspace and didnt answer his fone i stayed up until 4 in the morining crying. i think he is keeping things from me bcus i just found out he smokes and i dont understand why u would keep sumthing so simple from some one u claim u love and now i think there is more but it will be even more painful then this is i need help please!! i love him so much and he talks about a family with me after collage i really need help please!!!