Simplify the following text for a Grade 8 native English-speaking person.
Original: The reasons for his departure are unclear , it was widely thought to have been because of family constraints however Brainard dispels these rumors , explaining that ; `` some decisions were made that I was n't particularly happy with . ''
Simplified: No one knows why Brainard really left , it was widely thought to have been because of family problems . However Brainard denies these rumors , saying that ; `` some decisions were made that I was n't particularly happy with . ''