@AYACHOOSEN,
You know there is always temptation it's a case of whether we accept it or not.
You Boss knew didn't he that you had been with your boyfriend for 7 years but it's now long distance yes?
If so, he took advantage of you, went for a second and then getting what he wanted stopped.
What do you think of him now?
Long distance is hard sweet, very hard and your boyfriend has been there for you but there is more than finance. Look back at when you met him, obviously there was a spark, if he wasn't so far away now do you think that you would still be happy? Do you think it could be loneliness and that you feel that you are on your own?
Leave your job as in submit applications and get out of there.