Answer:
I personally disagree.
Step-by-step explanation:
Even if it is a painful truth you can't keep it from somebody for long. I feel as though the situation will only become more problematic than if you had told them right then and there. Not only would they be hurt by the truth, but they would also be hurt that you decided not to tell them. It could lead to them to thinking you're not honest nor trustworthy and they would believe you have no integrity. That could only damage your future friendship/relationship with that person. So I feel it would be better to just tell them then and there instead of keeping it away from them.