After a huge falling out with a colleague, I really want to change jobs. The only thing is, the offers I've been getting are half of what I'm currently on. They are big name firms and there may be good quarterly bonuses further down the line but it's not guaranteed and it all depends on company performance. And it's only if the bonuses come through that my pay would be the same or a bit more. I know it may sound childish to jump ship to avoid my colleague but I'm starting to dread going to work and I don't want to waste any further time here. What do you suggest?