You meet someone and they are wonderful. The time you spend with the person is amazing. But the other person is afraid that they will hurt you because they have a track record of leaving relationships because 'love hurts'. Love hurts because of a past relationship which was ended approximately 15 years ago. You don't want to change the person.

Do you stay in a relationship and enjoy your time with the attitude that nothing is guarenteed in life and that you will be okay with however long?

OR

Do cut your losses and not stay because you in the end don't want to be hurt?

I have never had this happen, but it seems like a real hard decision to make, If you both enjoy each others company then I would just give that person time. What can you lose? Nothing. But you could gain a good friend.