totally unattractive, be a man, make a decision, none of this sitting on fence crap.
You probably did this a lot with your wife during your marriage, she would ask you if you wanted to do this, that or the other thing and you would say "I don't know..." or "maybe we should think about it some more..." or even "whatever you like I'm fine with it"
Women don't like that.
Women like Men who can make decisions, who can be decisive, who can lead, show the way, etc.
Your female co-worker is asking you out for a drink, go have a drink, it's not rocket science.
You go out, interact with her, get used to what being an attractive man is all about, go out in a public setting, with another woman, get used to talking to her, get used to listening to whatever she has to say, ask her questions and let her talk to you, let her explain her life to you, women love to talk to people who engage them in this way, show some interest but don't be a puppy dog.
You don't get it but your wife probably didn't get this type of interaction from you, it's probably why she wants it from someone else.
We're not telling you to go out and have sex with this co-worker, not telling you to hump the first skirt you come in contact with, not telling you to grab her and make her sit on your lap and stain your trousers, it's a drink, in a public setting. It's good for you to get used to doing this, like Steve said, "social interaction", you don't have these skills obviously and you need them. You admitted yourself, your wife comes out, tries to talk a little and you run away like a scared little girl.
Where in DB does it say run away from your spouse if she tries to talk to you?
Yeah, I get it, be busy, have places to be, yes that's what it says, part of the whole GAL thing. But if someone wants to say Hi and pump out a few sentences, it's ok, you're allowed to listen a bit, heck you might even enjoy the interaction.
This isn't just about following a list of items on your db to-do list and getting your spouse back, it's learning how to be a human being again, a successful one at that. Learning how to interact with people, being strong and confident, displaying confident body language, this isn't just about losing weight and putting on cologne and SHAZAM! your marriage is back. There's a lot more going on behind the scenes, time for you to get more informed on this process or you'll still be here several months from now asking what else you should be doing.