My female boss wants me to go out with her... should I agree?

She's 34 years old.
She's always been extra friendly with me (but she's like that with everyone) but last week started to text me on WhatsApp, ask me how I am doing, if we can go out and drink something together, etc.
Today She asked me if tomorrow night we can go out and also if I have a girlfriend or something when I told her I'd let her know.
A coworker told me she got a guy tranferred because he had a girlfriend, so I don't want to end up the same way or get fired...
What do I do?
Updates
+1 y
She texted again asking if I'm free tonight. This morning I was stupid enough to tell I had nothing to do...
Updates
+1 y
We went out together yesterday night.
Nothing weird happened but she asked what free day I want her to give me this week (she makes the schedules) with the implication she'll have her free day that same day.
I hope I haven't messes up
My female boss wants me to go out with her... should I agree?
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