sleeper, Yes, it irritated you about the food....but it's the dance. She thinks you are dating and she's trying to find out what she can about the lady and yes, your dating or going away for the weekend has her in a tail spin! Look what she's done...a birthday card 5 months late, sending tons of food with you and the children and telling the children you have a girlfriend. It's evident she's feeling like she's on ground that is starting to shake. In her mind, she always thought you would be right where she left you at home, single and there at her beck and call.
I had to chuckle over your posting because this is par for the course w/the mlc crisis folks. You distance yourself, move on a bit, go out and have fun....they then try to reel you back in by doing things such as this. Of course she's not going to call the OM her boyfriend...because there is no deep love commitment w/him. He's her boy toy and nothing more.
Enjoy your week.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.