Do you think i should leave this ??

Ok well me and my boyfriend have been together for 2 years on and off. we got back together recently because he moved back to ny. it hasnt been going that well. i think hes cheating one me lol but idk hes weird. he start going to church like da hypocrite he is and made a friend there. a girl. so he has a phone thats under my name so ive been trackin his calls and everythin even checked his voicemail. well she apparently calls him a lot he be on da phone wit her a lot for like 30 or more mins and idk if all about god that they are talkin about. ima quote her last voicemail from yesterday, "hey babe its _____ just calling to c how u doing i get out of school at 5 so yea call me i miss you." now does dat sound like a friendship idk. honestly he doesnt even spend 2 mins on da phone with me n hardly sees me so i wonder. ive said enough before new years but im not really stressin it now i just want to kno if i should leave him or not. i love him but im startin to doubt his love.