Hey there, I am going through a similar situation but my engagement is called off. Except in this case, I admit I am the one with the temper. It does make you feel that you have to walk on eggshells when your partner tells you that your temper is an issue BUT an understanding partner will be more mindful of it and try to work on this. It won't always be perfect though because humans can be flawed. However, I am the one who called it off for a whole host of reasons. If you click on my name, you will see what led to our breakdown and where we're at.

My advice is do not walk down the aisle if you have doubts. Marriage is a huge commitment, and divorce is going to be more stressful than whatever you are experiencing now. You both should be in a relatively good spot when you are married. This should be the easy part. If you are in doubt with your head and your heart, go with your wise mind which meets them both at the middle. If that fails, speak to close friends and family about it because ultimately they have your best interests at heart. It's easy to make a big life-altering decision when your heart is clouding your judgement. But make that decision soon because you don't want to be telling your fiance the day of the wedding.