Before, they believed it was for the best. Now, after certain events, some of which are spelled out in the tweet, they believe the other. Both are completely v

Before, they believed it was for the best. Now, after certain events, some of which are spelled out in the tweet, they believe the other. Both are completely valid and do not contradict one another. And it's quite normal and acceptable to change your mind after you get more information. I think Foo is true. Let's see! I think Foo is not true after seeing new facts.