Do u think my boyfriend is being honest with me?

ok recently my boyfriend and i quarrelled because i tought he was sort of cheating on me. He told me this " try to ask urself sincerly,would i ever cheat on you to break us apart.. i'll never do such selfish thing". He told me that and i just want to know if what he said sounds sincere and that he really loves me??? what do you people think??? does he sound honest??? i love him alot!!