Leah, I'm happy and I'm skeptical. I think his intention is to make sure you're not spending it with someone else.
Good work on following your instinct to ask for time to think about it.
First, decide if you want to see him. That's decision #1.
Secondly, if you decide yes to the above, decide if you want to see him this weekend. That's decision #2.
Third, if you decide yes to the above, decide how much time you will give him. For example, maybe you spend the day Saturday with him, but you have plans Friday evening, Saturday evening, and Sunday (it is short notice, after all.)
One thing I know is that, if his intention is to come back to you, you can't let him back easily. He destroyed trust, and he's going to have to work to show you that you can trust him.
I also know you can't show your pain until you hear from him a commitment to working on the M. It's just not relevant until then. You can state it in a matter of fact way, but you cannot let loose with sadness and anger. It's not the time for emotions. Pop those Xanax, girl.
I'm looking forward to hearing how you're feeling. I think we can advise you better when we know.
