Kaley Cuoco and Ryan Sweeney are the latest celeb couple to announce their engagement. And the most shocking thing about it, is the fact that the couple have been only dating for three short months! A source close to the couple stated, "It's only been three months but she knows Ryan is the one," a source close to the actress explains. "When you know, you know."The source also added, "[She's] never felt this way. She knows this is it. And the ring is gorgeous!" And on her twitter, Cuoco later tweeted after she accepted her proposal, "Flying high, I could literally touch the sky with you . . . " This will be the first marriage for both of them.