Looking for a movie name. About a dead girlfriend who tries to break up her lived boyfriend with another lady. But in the end she changes her mind and wants them to get married. The lady was a physic and the guys sister gives the physic his diary. To help him get over the death of his girlfriend but ends up falling in love with the guy then enters the dead boyfriends ghost girlfriend and tries to split the two up like I said before in the end the ghost girlfriend wants them together after she sees how unhappy her live boyfriend.

Over Her Dead Body (2008)
starring Eva Longoria, Paul Rudd, Lake Bell, Jason Biggs

Over Her Dead Body - Wikipedia, the free encyclopedia

Wikipedia excerpt:
After several months of watching Henry fall back into a depressed funk, Kate encounters the sculptor once more, who points out that, if she had resolved her unfinished business, she would have moved on to Heaven by now. When the sculptor asks her what she really wants, Kate reluctantly admits that she only wants Henry to be happy and realizes that he could be happy with Ashley.