Boyf's birthday!!

So my boyfriend turns 18 soon and I was planning on taking him out for dinner then getting a hotel for the night. But my mum and family wanted to take him out for dinner as a surprise. 
Should I take him for dinner and then a hotel or take him for dinner with my family there and then get a hotel?? I'm so confused now because my mum interrupted my plan I've had for 6 months ahah please help xx