United Kingdom, April 27 -- Taylor Swift and Travis Kelce have "deepened their bond" during "all the time they've spent together recently".

The 34-year-old singer has been spending time with her Super Bowl winning boyfriend during a break from her 'Eras' tour and friends believe she will find it difficult to be separated from him when the European leg kicks off in two weeks.

A source told Us Weekly: "They have deepened their bond. It makes the prospect of her tour more challenging. She'll be sad."

However, Taylor and Travis, 34, are both realistic and support each other in their careers.

The insider said: "They support and respect [each other]. They have busy careers, so they understand those commitments, as difficult as it is.

"They...