Just go into work tomorrow being yourself.
Unless you made a right dick of yourself, then what’s the problem? Carrying on as normal and being friendly will go much further than being uptight about it.
I’m a bloke, blokes make up stuff in their heads as far as wimmins feelings are concerned. It’s always been the same and always will be. Sometimes the instinct is right, sometimes it’s so far off whack that you end up questioning your mental state.
Don’t put it down to being ‘led on’, move on and maybe just have a good colleague friend relationship that will hold more value in the long run than a colleague shag partner relationship. Women friends are great and make a good release from bloke friends – make as many as you can and your life will be better for it!