Do you live with your BF? Can you two keep your distance from one another while you are withdrawing from the Paxil? Have you researched how withdrawal from this prescription drug may affect you and what types of withdrawal symptoms others have reported? Perhaps the two of you can research this together and doing so will help to 'cool' the emotions of these exchanges because you will acknowledge the situational context/circumstances that are contributing to this experience?

What about exercise or taking a long walk to help burn off excess energy that may be building up? Writing about your emotions or what you're feeling inside? Talking to a trusted friend/family member? I assume this is not your 'normal' behavior so please keep reminding yourself that this will pass, that it's only temporary and you just need to hang in there and work your way through this.