First year cloud 9 everything is new and fresh where you learn about each other is a lot of oooo and ahhhh....second year onwards is a more realistic time where u see how compatible and all the 'i told u so' and getting upset over every little things....if u pass the second yr and still happy to see the other and can still talk to each other with respect then maybe she is the right one...imagine spending say another 50 years together with the same person same way she talk same way she do things and still think you will love it i think u can go ahead and propose. Dont hope to change or she will change for better then u will be happy.

Hope this help...being able to communicate and not having to yell at each other all the time is half the battle.