The phrase "manipulative way" means trying to control or influence someone else's thoughts, emotions, or actions for your own benefit, often by being deceitful or using sneaky tactics. Full definition
There is evidence that learning theory techniques have been misused in manipulative ways in some institutional settings without (religion-online.org)
She'd use other emotionally manipulative ways of controlling us to get what she wanted. (nakedpastor.com)
And remember, you really feel for me at the moment and want to show me you care (she suggests in an outrageously emotionally manipulative way). (housegoeshome.com)