I have the same experience, but with watermelons. During the summer my dad used to buy the biggest watermelon that he could find. It was fine the first day but after that you get bored of the taste. When he saw that we’ve only eaten a quarter of the watermelon, he’d try to convince us to finish it. This was repeated a couple of summers and now I can’t stand the taste of watermelons, even in gums or candies. The taste isn’t bad, it’s sweet, but it tastes like to much work.