I need ur advise abt my situation ryt now.im inlove with a married man and i think he is inlove with me?

ive known this man for almost 2 yrs now.and lately we had a chance to hve a little talk and he got my number and told me that since before he was already attracted to me.he didnt make any move before bec he thinks i will get angry to him.he is a very handsome guy,who was only 1 yr married to a girl he doesnt love- love arranged by parents..and that told me the first time he saw me he was attracted to me.then bec i like him,i entertained him and now that we hve a reltnship i dont know if i will continue our love for one another or try to forget each other.btw- we work in same company so we usually see each other.aftr work he calls me,send me msge,chat online..what should i do?should i continue this love with him?it seems so hard to loose him...i know he loves me from the way he makes me feel.and he told me he will never forgive himself if he loose me..but we know we can never get married.