It's Valentine's Day week, which means love is in the air, every ad, and every store! Just because it's in the air, it doesn't mean we have to breathe it in. Whether we're single, cuffed, or in a situation, love can often be more toxic than sweet. Our girl Britney Spears was onto something when she first sang 'Toxic.' Even though someone might be wrong for us, we'll still be on a ride with a taste of their lips. We can't explain our attraction to people that aren't right for us, but at least it…