<human>: Could you distill the essence of the text into 1-3 sentences?

Background info: I was made redundant in my last job due to cuts. I knew it was coming and I'd already started looking for another job. Landed the one I'm in now 2 weeks after redundancy and for a lot less money.

I thought I'd give it a go knowing it was an interim thing. Even at the interview, my boss said he could see me there for a year, whipping some of their activity into shape and leaving with a recognisable brand on my CV. Everyone wins.

I'm 6 months in now and the job is very stressful, management is verbally abusive (I'm not exaggerating, he's already made me cry once), the days are long, on top of the pay being very low. It's affecting my marriage and my health.

After a particularly stressful day, my boss asked if I was looking for a new job. About 2 weeks prior, I'd talked to HR in confidence about my notice period as I am still on a 6-month probation (which ends next week). I immediately thought they ran to my boss and told them I was looking to leave. Oops! Cat is outta the bag. That wasn't the case, but that's besides the point. I told him yes, I was.

He was understanding as this company and this job has high turnover. So far, it's been nice looking for work under his nose, walking away from my desk to take calls, asking for time off. But now he's sweating me about when I'm leaving so he can get on the case with interviewing my replacement, even going as far as hinting that he might start the process sooner rather than later, and will just give me notice to leave at his discretion.

By law, I know he can't do that. But I'm worried they'll find another reason to get rid of me before I've found another job. My last job search took about 12 months of on-and-off searching. I'm worried that might be the case here again. How can I get my boss off my back and not be let go or fired on trumped up 'charges'?
<bot>: Told my boss I was looking to leave. Now he's sweating me about when that will happen with veiled 'threats' that he may let me go first before I have a chance to leave for another job.