I have been up there several times and different types of partners, and not always to the top.
Here is what the experts say, applicable to ANY mountain, and applicable perhaps to you and/or your girlfriend.
You can't go for the summit because you feel obligated to. You have to do it because you're really motivated from inside, because you have your own personal reasons to do it.
Conrad Anker, The Lost Explorer page 145
Mountains are not a race track. In a race there can be only one winner. On a mountain everyone beyond a certain indefinite standard of ability and strength can reach the summit.
Nicholas Clinch, A Walk in the Sky page 5.
The slopes were much worse than the scenery was fine.
Charles Granville Bruce, Twenty Years in the Himalaya, page 120