Am i wrong for feelin lke dis?

ok, so my bf iz in college. i live in mineapolis, and he attends a college in milwaukee. he comes bck back wit me every weekend, holiday, break, any time he can. he play college basketball..... some how i just have a feeling that he aint gunna stay faithful. he hasnt givin me any reason to feel like that at all, and honestly, he not doesnt even seem like the type. itz jsut fact that EVERYBODY AND THEY GRANDMAZ GRANDMA keep tellin me theres no way he aint cheatin and ta just be ready to move on. ppl who no him, dnt say anything like that though. well, they dnt say anything bout it at awl honestly. we're really open with each n all dat, but still some how i end up listening to very thing and feeling like i shouldnt even trust him.... am i wrong or that?