Although she did not have another noteworthy performance for the rest of 2005, she still finished 13th on the money list with more than $700,000 earned.

Birdie struggled much of 2006. She did not finish in the top 100 on the money list, but fortunately for her, still has four more years of exemption thanks to her Open win.

2007 was a much better year for her. She actually contended in several Majors, even leading the LPGA Championship late in the game. She capped her year with a second place finish at the Tournament of Champions and the announcement of her impending marriage to a fellow golf pro, whom she apparently met through their mothers. She also beat Morgan Pressel at the World Match Play, in a tantalizing rematch of their 2005 US Women's Open duel. She finished 43rd on the money list, a much better overall season than 2006.

Birdie got married in December, 2007, to Bae Gyu Lee, a fellow golf pro, and after a short honeymoon, was back at work preparing for 2008.

In 2008, Birdie started well, with top 20s in two of her first three events. For much of the rest of the year, however, she struggled. In 2009, she missed most of her cuts, and finished no higher than 29th. In August, she was back home in Korea when she was involved in a horrific car accident. Her neck and shoulders were so injured that she couldn't swing a club for six months afterwards. It took two operations and more than a year to fully recover. She only played two events in 2010, missing the cut in both, and spent the rest of the year recovering from her injuries.

In 2011, Birdie was able to play 11 tournaments, but made only 2 cuts and finished outside the top 125 on the money list. She maintained low status on tour thanks to her Open win.

Birdie only played one LPGA event in 2012, the US Women's Open, and missed the cut. She focused on the Symetra Tour, where she had three top ten finishes including a second place. Not good enough to earn a card, though: she finished 20th on the money list. Thus, she maintained only limited playing privileges on the LPGA for 2013.

Birdie only played a couple of events on the LPGA in 2013, focusing on the Symetra tour instead. But she did not make enough money there to earn a tour card, and so went back to LPGA Q-School in the Fall. She was not able to get a full tour card, but her 23rd place finish did get her category 17 membership for 2014, a slight improvement over 2013.

Alas, Birdie did not play well in 2014; she only made one cut, and finished just tied for 67th at that tournament. She somehow maintained low membership status for 2015. Birdie made only one LPGA cut in 2015, and was not able to get decent status on tour in 2016. She did not end up playing after that and retired. She is now living in Korea, and still plays golf with her old LPGA friends from time to time!

In 2019, Birdie has taken on a new challenge: coaching the Korean National team at various international events. She coached the team of Uhjin Seo, Ye Been Sohn and Ye Won Lee to a crushing 16 shot victory at the Queen Sirikit Cup, a yearly event that pits female amateur golf teams from all over Asia, Australia and New Zealand against each other. The three Koreans also finished 1-2-3 in the individual standings. That's domination!