Acharacter has multiple or conflicting motivations.

A complex character has multiple or conflicting motivations. (I think I'm not so sure)

The answer is a flexible character

Throughout a story, the characters are often faced with a lot of different emotions and circumstances. A flexible character is one who, when faced with these strenuous emotions or circumstances, has to change his/her way of thinking or approach to an idea or plan. They also sometimes end up having to change to change their stance, outlook or commitment on something just to cope with the certain situation or overall stressor.

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