history: I was working hard, hoping to get a raise after over 6 months of extra work and doing a great job, but it didn't happen. My boss kept me at the same pay. I've been working hard and doing a great job for several months_comma_ but still no raise. thats always a bummer when you put in such work and get nothing in return 
current: Yeah, especially when my boss promised to pay me more. Might be time to quit!
next: Oh I just quit a few weeks ago due to a similar situation actually! Never been happier! 