Before I start I want to remind people that TRP is amoral and I don't want to get into the rights and wrongs of this.

There's a girl at work who is very very interested in me. Countless examples, signs, words, actions over several months.

The trouble is she's in a LTR. I'm married but currently on a break.

Just to make things clear, this girl has already crossed the line into emotional affair. We're way over that line. We regularly meet for coffee. She's told me she isn't happy with her BF. She's told colleagues she's into me. At a recent party she grabbed my hand, was stroking my back, long eye contact etc etc just a long list of constant IOIs for months. Just yesterday she was showing me pictures of her abs & saying what a 'badass' she thought I was.

I want to make this physical but I can't seem to get over that line, and it's all down to logistics. Whenever I start turning the conversation to meeting up after work, she gets awkward. She clearly wants to but her ASD kicks in and it's like she suddenly remembers her LTR. No girl wants to be a cheat and I get that I need to provide plausible deniability but this girl is gagging for it.

I just can't think of any examples where this girl and I could plausibly meet after work where I can isolate her. I've got so frustrated by this that tonight I said to her bluntly I want us to go for a drink because life's too short to not do what you want to do. Her reaction was that we could be seen and she doesn't want to hurt her LTR.

For her meeting at lunchtime is ok because the plausible deniability is that we just happen to be in the same cafe and you would naturally sit next to someone you knew. But evening drinks would be completely different.

I am at a loss and it's so frustrating because this girl is so hot, has already crossed a line with me, is into me in a big way but maybe she just won't cheat physically?

How do I give this girl what she so desperately needs, which is plausible deniability to get into a position where we're alone together in a discreet place?