Yes unfortunately i have and its happened a lot, i had this friend that i met when i was 7 and by the time i was 14 we knew everything about each other at least i thought, we usedto talk about getting married and haveing kids and when we started high school he told me he was gey, i kind of thought he was but i was in denial because i thought he was the one even though we were barely teenagers it was still heartbraking and now it seems like we are closer thn ever!