Well first off, please write more legibly in the future. I had a hard time understanding that.
Don't be a home wrecker and ruin her relationship. Tell her you're interested in her but you're not going to destroy her relationship out of respect for her. Then treat her as a friend. Once she breaks up with her boyfriend, ask her on a date. This is the only way to handle liking a girl who's dating a guy in a way that doesn't make you the bad guy.
Time is a great teacher, but unfortunately it kills all its pupils ... - Louis Hector Berlioz
Gene Police: You!! Out Of The Pool!