I'm planning to "steal" my boyfriend's dream job
Why do you want to steal his dream job?
I think this is the ultimate revenge.
It is normal to want revenge when you are upset with somebody but you will hurt your boyfriend deeply if you take his dream job. It might lead to a break up.
I've been thinking of revenge for a very long time.
Why are you trying to get such revenge on your own boyfriend? You shouldn't be fighting against him, you should want him to have his dream job.