This can get dicey. The first thing I always ask myself is if this friendship is worth it. Some friendships are very 1 sided where there is no give and take, it's all give. At onetime I would have just gone along. I don't do this anymore. Life's just too darn short! If this person has a place in your heart and they feel the same, then they wouldn't want you to have to hold this in. I believe true friends want the best for us.
However there are many different levels of friendship, close, casual, acquaintances. If what is bothering you is going to destroy what you have with this person and they won't deal with it, I think I would try to get to the bottom of it or at least accept the limits of this friendship. Sometimes you just have to be willing to lose it all in order to be true to yourself.
