I have several questions about it:
1. Are you sure to give that much money to someone else?
2. Does she know about BItcoin?
3. What is your real intention of giving her that much Bitcoins? It may be secret but the reason may become the exact thing why you should or shouldn't do it, just think again by yourself.
4. Do you both still become good friends? If yes, why don't you try to talk while joking regarding Bitcoin, and what if I give some bitcoin to you? You will see her expression at the time
5. he is married, so think also about her husband whether he will be jealous or not. or maybe he will be also very happy. But you must also tell the husband about your intention giving that super gift