It is my main car that I use all the time, but they said they'd give me his truck to use while they're gone. Honestly, I really don't want to lend it to them, and I'm not comfortable with it, but I have a problem saying no and can't think of any excuse for why I'd need my car that week. I'm just wondering if I'm being silly for not wanting to lend it.....

I had the idea for them to rent a car as well, but they don't want to spend the money for that.....