I mean like, 1 week you may like chocolate, but another week you may hate it, as your inner personalities vary.
Does anyone get what I mean? Because I feel like many different people/personalities, I think this is why.
For example, I usually love roast dinners, and I look forward to it at the end of the week on a Sunday, but lately these past few weeks, I am completely put off. I don't like roast dinners lately

It happens with a lot of food, 1 week I like something, the next I don't