'Bachelor' Ben Higgins Is Engaged -- But Who's the Lucky Lady?

Ben Higgins is a bachelor no more!

After Caila was sent home   on Monday night'sThe Bachelor, ET confirmed that Higgins did in fact pop the question to one of the remaining women.

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A source says Higgins knew very early on in the show who he would choose to be his future fiancee, and "instantly felt a connection" with her. Now, The Bachelor star is "constantly texting and calling" his wife-to-be, and ET's source says she "runs the roost" in their relationship. Since getting engaged, the two have met up several times for secret weekend dates.

On Tuesday's Good Morning America, Higgins made the news public. "I am engaged," he announced. "I haven't said that in an interview yet!"

The 27-year-old reality star admitted that it's been hard to keep his engagement a secret as the show unfolds. "You don't know how much stress and weight that is to carry on you for so long."

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Higgins broke The Bachelor's cardinal rule on Monday night when he told two women, JoJo and Lauren B., that he was in love with them. "I never thought in my life I could be in love with two people at one time, but I am," Higgins said to camera. "After telling two women that I'm in love with them, I'm in a state of shock because my heart's in two different places."

Next Monday, Higgins will confront the eliminated contestants on ABC's The Bachelor: Women Tell All, and   the following week, viewers will find out who ended up with the final rose.

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In the meantime, here's a recap of Higgins' "I love yous" from last night's episode: