Vanilla once said that I should think about the light house and just be. You are doing well keeping yourself in a positive direction, studying and growing your horizons.
I hope you did well in your tests. There are other forms of happiness in life and even knowing that there are dark moments, you can manage to find purpose and become a better person.
You have been learning and applying some changes that will make a difference if you R with your W or if you find someone else to share life. You are young and have a lot ahead of you.
Keep up the good work, you are a good example for the little ones and one day they will tell you how proud they are they have a dad like you.
Amazing as it is, now that I am going through this situation in my M, I have been hearing and seeing how many people go through some difficult times, and how time can heal and change perceptions.
I hear about couples that separate for two, three, five years and then find themselves going back together. It's almost like you need a vacation from each other and then things cool down and everyone can see things a little more clear.
Like Edz says, the sitches can change very suddenly and one never knows what will happen tomorrow. The only thing we can do is to try our best and become better with the knowledge we acquire during this time.
Jim is doing all this, and I am sure you will be happy one way or the other. We are all very proud of you.