Jennifer Aniston, Brad Pitt and Angelina Jolie
Jen Lowery/Splash News Online; Steve Granitz/WireImage
has nothing but warm wishes for her ex-husband Brad Pitt
and his new fiancée
, Angelina Jolie
"Jen moved on a long time ago, and she is trying to just focus on her own happiness
," a source says of the actress, 43, who will celebrate her 1-year anniversary with boyfriend Justin Theroux
in May. Pitt and Jolie announced their engagement
"Jen is not a bitter person and she has always wanted Brad to be happy," says the source. The couple divorced in 2005
after five years of marriage.
"Jen spent many happy years with Brad and thinks their divorce was meant to be," adds the source. Now living in L.A. with actor-writer Theroux, 40, "she is very happy with Justin – and that's what she is focusing on right now."