Second time asking to babysit

See previous posts. I have no relationship with my in-laws and have had a ton of previous problems which lead me to be in therapy because of them today. Well today as I conveniently went outside for 5 minutes, I come back and husband is taking to MIL on the phone. She was asking what we are doing Friday. We have no plans other than spend it with our LO of course. She asks if we can drop LO off (one hour away😂) and they could babysit. I have pre trained husband with the saying “thanks for the offer, we will let you know if we need a babysitter”. He said that. She said, well think about it. (No thanks! Not ever!). His family will never watch my kids due to the past and I am just not comfortable or trust them. I am a SAHM and don’t require a babysitter however I have pre booked my mom 3 months in advance due to me having a 1 hour appointment😂.