Jamie Lynn Spears & Casey Aldridge Split

The couple announced plans to wed before calling off the engagement and splitting earlier this year (10), but was reported to have reunited in August (10) after attending a Lady Gaga concert together.

However, Jamie Lynn Spears has ended her relationship with 21-year-old Casey Aldridge once again, according to America's Star magazine.

A source tells the publication, "Jamie Lynn got fed up with Casey's immature behaviour. She thought he'd changed - that's why she got back together with him. But he's still the same old guy."