How will translate "谁让你" into English?
谁让 expresses weak causality with a mood. Depending on the context and the tone, the mood can be humor, banter, sarcastic, helplessness, complaining or something else. Accordingly the translation can be "since", "after all", "only because", "God knows why", etc.

In your example, it seems the speaker is just grumbling or expressing helplessness in a cool mood. I would use "after all" in this one.


  I have to listen to you. You're my boss, after all.