Complex sentence: Jepsen's second studio album was initially planned to be released on February 14,2012, however, she chose not to release it because she wanted to make sure she got the second CD right.
Split into simpler sentences: Jepsen's second album was initially planned to be released on the Valentine's Day of 2012. The singer, however, chose not to release it, because she wanted to make sure she got the second CD right.