The 32-year-old actor, who has been dating the 'Applause' hitmaker for almost three years, admits he is very inspired by her.
Asked about his famous girlfriend, the 'The Other Woman' star told UsMagazine.com: ''It's someone who's always in your corner, that believes in you and your work, and vice versa. You know, I love what she does and her work and music and charity. She inspires so many people including myself.''
The 'Chicago Fire' star is rumoured to be preparing to propose to the 'Bad Romance' singer, real name Stefani Germanotta, but hasn't found the right diamond ring yet.
A source recently said: ''Taylor's been looking at engagement rings for Stef for a couple of months.
''He has told a couple of his close guy friends that he wants to propose soon.''
Lady Gaga, 28, previously admitted that she is completely smitten with Taylor.
She said: ''He is extremely strange, actually, and we complement each other's weirdness.''
The actor also claimed in the past that their relationship ''works'' because of their many similarities outside of the spotlight.
He said: ''I'm reserved. She's not. For whatever reason, it works. It works and that's that.''
The BBC drama starring Aidan Turner returns to BBC One on September 4th.
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