Taylor Swift a.k.a the queen of relationships has cold feet!

After starting a hot and heavy romance with actor Tom Hiddleston shortly after calling it quits with Calvin Harris, a source exclusively reveals to In Touch that after accidentally finding a diamond ring in the Thor actor's drawer, the singer is now hesitant to accept his hand in marriage.

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"She feels bad because she's the one who originally told Tom she wanted to get married, but now she isn't sure what she wants," the source reveals. "She ruined the whole surprise, which left Tom upset for obvious reasons. But he was also crushed that she was telling him she wanted to wait."

taylor swift and tom hiddleston
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Even though the pair has only dated for a few months, Tom is ignoring the advice from friends and family to slow things down, and instead wants things to get serious — fast.

"He gave her an ultimatum about getting engaged," the source continues. "She's now telling everyone she's made a 'decision to make a decision' by the end of August. She knows she either has to get engaged or leave Tom."

For more on this story, pick up the latest issue of In Touch, on newsstands now!

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