The phrase "ambivalent by" is not typically used in written English.
It would be better to phrase it differently. For example, you could say "ambivalent to" or "ambivalent about". For example, "He was ambivalent to the idea of traveling abroad for work."
Adding heft is a beautifully ambivalent performance by Rob Benedict as Laura's wistful brother-in-law, Paul.
He remains elusive and ambivalent, defined by the aerial grace of a persona which has found the only possible refuge from the exuberant agitation of its being.
A slightly ambivalent preface by Chinua Achebe comments on its "rather unusual and highly personal form" and the novel's success in presenting an allegory of betrayal of trust and responsibility in Africa's newly independent states.
Chanel (Adrienne Bailon) is preoccupied with her mother's ambivalent courtship by the dashing Luc (Abel Folk), as well as the prospect of having a Spanish-speaking friend in Marisol.
Was the archbishop, in other words, crossing a line between the spiritual and the temporal; or was he, as an editorial in The Financial Times put it, merely showing "how the church aspires to be a potent force for good?" Even before the Wonga affair, the church's investment principles seemed ambivalent, beset by what one analyst called "inconsistencies and absurdities".
Casting a cool, satirical eye on the herd movement and exotic fetishism of the tastemaker class, this first novel is equally sensitive to Chao's ambivalent seduction by the new world he inhabits; paradoxically, in order for his con to work, he must believe that feng shui has the power to harm.
The idea of uniting humanity under one empire or monarch, however, became an ambivalent appeal by the seventeenth century with the entrenchment of the system of sovereign states after the Peace of Westphalia (1648).
Image taken from the front cover of The Ambivalent Internet by Whitney Phillips and Ryan M. Milner.
She has been challenged by ambivalent or outright hostile governments, by communities lacking proper support, and by a public that often vacillates between indifference and racism.
It was shaped by people Nasr criticizes, like Jones, Lute and Eikenberry; by people he is clearly ambivalent about (Tom Donilon); by people who are demonstrably "pro-Holbrooke" (Chollet and Power), and people like Susan Rice and Anthony Blinken and Kurt Campbell and Anne-Marie Slaughter and others who cannot be considered to be outside the establishment.
