Choice 2 would be the one I suggest. But...you know, it doesn't matter how many votes you get for either one, this is your life and you shouldn't leave it up to a commitee to run. : )
Look if there is an affair, you'll find out. In which case AFTER choice 2 has been lived successfully for awhile, choice 1 becomes an option.
As for the demanding part...demanding is seldom a good thing unless you are prepared for the MLC to defy your demands...and then what are you left with, either you look like a jellyfish becasue you have no spine, or you have forced yourself into doing something you didn't really want to do.
Either way...
And this is for you, Talking to her, and suggesting that you are VERY uncomfortable with her hanging out with this 25 year old and that it is pushing buttons and reminding you of the past...say 2 years ago past and while it is up to you to get over this,the memories are affecting you.
Do not demand anything of her, do not tell her this or that. Let her know how this is bringing up old memories and leave it at that.
Experience is a brutal teacher, but you learn. My God, do you learn. - C.S. Lewis
Life is usually all about how you handle Plan B. - Jack3Beans
Listen without defending; Speak without offending - FaithinAK