it is better for u to discover it now..rather than when u both already engaged.Well just move on..if he really decided to let you go..do u think it is worth for you to love him anymore..it might hurt cause u hv a long relationship with him..but i can tell u that in this CC there are a lot more ppl who have a very long relationship and still break up.So do wat u think it is right to do..wat u need is to think logically.Time can cure everything..good luck..