The 'Love Story' hitmaker recently started dating Styles despite still having feelings for her former boyfriend Conor Kennedy, reported Hollywood Life online.
"She still texts Conor but now that things are moving fast with Harry, she is seeing the writing on the wall that she is unable to hang out and progress with Conor in any way. She now is confiding in Conor more as a friend and the flirty texts they have recently shared have ended.
"She is now officially caught up in all things Harry. She was playing games before, but now obviously she has become more fond of Harry (because) they are able to hang out all the time, which isn't the case with Conor. And Harry is really trying to woo Taylor off her feet," a source said.
Meanwhile, Kennedy is said to be fine with the latest development.
"Conor is fine with it, he still really likes Taylor but understands its not going to work out now or ever."