Sir, if you are not sure of her then don't even bother going further with her. Marriage goes beyond love. It's a lifetime deal that requires more than just loving her to get through with. It is even preferable if you love her more than she does you. My opinion tho...

CasNova:
Go for Nursing, read up to the highest level and you will realize that you can still be a lecturer.

Exactly, you will be a hotcake after that.