Going out again is part of GAL. If he doesn't know I am going out then how will he know I am being mysterious? How do I handle this?
You are going out for yourself and not for him to notice that. He will find out by your attitude or maybe someone he knows might mention it to him... either way, it won't be a true GAL if you are doing it for him to notice instead of for yourself! You'll be mysterious by not mentioning it and he'll notice a change in your attitude. You'll have confidence from seeing how other men react to you, happiness from having fun, joy from feeling in control of your life.
You are doing great with your plans! Keep it up!!
I know this is hard to get through, I keep thinking things like you do too but the advice written her is right! first SIL does not need to even know just where you are going but, if you told her thats all anyone else needs to know..
you dont need to be overly secretive (that wont look good) just carry on with GALing if she asks I would mention just as much info as she needs to know with out a step by step play.