<human>: Can you condense the text into a few key points?

I have been dating my 23 y/o girlfriend for a little over 1.5 years now. I do not see our relationship lasting and I need some help. 
 I will list some things I see as issues and why I believe it will not work.

1) I am in the process of getting a job as a police officer in a very large city on the east coast. This has been my dream job since I was a kid. She hates it, I admit this is a tough time for people who have loved ones in the profession or getting in to it with all the things going on lately. If anything happens she always says things like "don't let that happen to you" or "don't get hurt" or "work somewhere safe" which I see in the future as just added stress for me and us. It is my dream job and I will not let anyone stop me from chasing my dream, I also do not see her able to live this life style/ fitting in where I am going to be moving.

2) We do not live in the state where I may be getting this job, and she just got a job that will be here career, in the state we currently live in.

3) She gets jealous when I do things without her, and then tries to pretend she is joking. Ex. watching a game, doing something with friends, just relaxing at home. And obviously that is really annoying. 

4) She get mad at me when I make jokes or comments that I have been making all along and never affected her before.

It may sound like I should just break up with her and my life would be so much easier, but I know she is madly in love with me and I don't want to break her heart. My family, specifically mother and sister really like her too, I have never had a girlfriend who actually got in with my family so I think they are really liking this about her. 

Any advice on how I can make things with her better? Or how I could end things without totally crushing her?
<bot>: I do not see my relationship with my girlfriend lasting and I need help/advice on either how I can make it better or how I can end it without totally crushing her.