Romance drama/movie where the guys steals the girl

I am looking for something like where the guy that comes later steals the girl from her boyfriend. And the girl falls in love with him. 

 kdsdfg:

I am looking for something like where the guy that comes later steals the girl from her boyfriend. And the girl falls in love with him. 

lol you make it sound like the girl is an item , something that can be stolen. if the girl fall in love with other guy, means she didn't fall any further for her boyfriend. no one can actually steal someone else.

but here it goes

Daytime Shooting Star 

Heroine Disqualified  (reverse way )

Kimi wa Petto (kind of she dates a guy but another guy lives at her place )  

Kuzu no Honkai  ( not a boyfriend but both have unrequited love )

Love and Fortune (exactly what you want)

Love Rerun  ( kind of )

Orange 

Peach Girl  (doesn't exactly "steal" )

Before We Get Married 

My Secret Hotel (ex boyfriend get his girl back )

Elise ( kinda)

That Thing Called Tadhana (somewhat )

Love Relationship Love Relationship  ( i dunno the ending but seemed like so)

Can't Help Falling in Love ( haven't watched ) 

Kareshi wo Loan de Kaimashita  (story is misogynistic  and messed up , but fits the criteria you wanted )

Strong Woman Do Bong Soon  ( not boyfriend but was in love with someone else before )

• Daytime Shooting Star (movie)
• My Youth (drama)

The female leads don't have a boyfriend though, they just have a crush on someone else but falls in love with another guy (male lead).