I know what you mean, but it would depend on my current situation. Assuming I’ve had to find another job with short notice (and I’m still in my probation period) it could be a great opportunity to leverage a massive pay increase, then spend the next year planning a proper move.
I wouldn’t list it as separate employment on my CV, unless I knew it was going to be scrutinised, in which case, it’s easily explained and reflects pretty well - they wanted me back.
My kids are 3 (girl) and 7 (boy), here are a few low effort things things that would win mine over:
If you want them to like you, you really just have to get down to their level and show genuine interest, or ask to join in. If that all sounds too much, then maybe it’s not going to happen.
If successful, you might need to gently set some boundaries… But hopefully you form a nice bond with them. You don’t have be an extrovert for kids to like you - I’m a firm introvert, and kids seem to gravitate towards me, like cats.