<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
There's a girl I really like, but she has a boyfriend. How do I get him out of the picture?
<|assistant|>
There are several ways you can go about trying to get the girl you like away from her boyfriend. The key is to be diplomatic and respectful. You could first attempt talking to the girl about how she’s feeling - is she feeling unhappy in the relationship? Or how her boyfriend is treating her. Additionally, you could talk to her boyfriend first and let him know that you're interested in the girl, that you want to keep her happy, and that you're willing to be friendly with him and work through it amicably. 
If all else fails, the most direct way is to wait until the couple is alone and make your move - be sure to be ready to back off immediately when the boyfriend intervenes. Be sure you're ready to back off - there are many reasons why the girl might be with her boyfriend and this is something best discussed between the two of them.