Despite The X Factor USA judge stating that Horan was not her boyfriend, the Irish singer's pals have insisted he's willing to do whatever it takes to make Lovato his lady - even if it means relocating to the US.
A source told Look magazine: "Niall finds the distance between them really hard.
"It's part of the reason why they've tried to keep things casual, but they can't deny their feelings anymore and Niall says he'll do whatever it takes to make Demi his official girlfriend."
The insider added: "They speak on the phone every day and have talked about Demi going to Ireland in the New Year to meet his family."
Speaking of Niall, Demi was recently quoted by The Mirror as saying: "He has a lot of great qualities. He is an amazing listener and makes me laugh a lot, two of the main qualities I look for.
"He knows I have a little crush on him, and we enjoy having dinner when we get the chance. We speak and message all the time."
She continued: "I don’t want a relationship over Skype; we are both in a place where we feel zero pressure to rush.
"We share the philosophy that the right one is worth waiting for.”
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