Hello everyone... a question here for you..

I have been going through marriage problems and we are separating, I have a son I love to death. The process began and its moving, it just takes time, money and stress .

During these hard and tense times I met someone that I truly care about and love. She knows my situation and nows its ending. Been seeing her for 3 months, 3 wonderful months ( we've known each other for a few years professionally).

But lately between huge loads of work, stress, my separation/ divorce and other things I have been very pressured.

Sometimes when I tell my girlfriend I have to spend time with my son or I can't stay with her a particular time... it makes her mad. She doesn't mean it, but she is is putting pressure.

It doesn't mater that I have spent lots of time with her, lots of nights during these last few months, now that things on my end are full of pressure, she gets mad if I can't make it one night or over little things.

And it carries over to other areas, if I can't make a time for her it bugs her and she hates it and lets me know it (mostly by text).

I have told her I have about a month and so left for my current marriage situation to be over, and that I would like to spend these few days ( specially the holidays) with my son, as there is a possibility he might be going away with his mother...

I don't think she gets this, and her reactions turned me off to the point I had to tell her this is how things are right now, to lets just take it easy for a few weeks until my separation and other pressure stress is finished.
Just to lets still see each other, but take it a little slower until this is done.
I kind of had to break our relationship as she didn't react well.

Now I am left feeling with guilt, I still like her, but right now I have to finish what I have to finish, don't know if I did the right thing by breaking this up, but I feel if she doesn't forgive or understand my situation, what will happen when other stressful things happen if we get more serious, like married...

Any thoughts?

You need to do what is best for you and your son especially right at this time and if she can not accept it maybe you need to take it as a warning that this is her personality and it very likely will be her attitude in many other things that you do not see eye to eye on.
You are doing the right thing to take it slow and see what she is really made of. If she wants control and 'win' over your son at this stage I can only begin to imagine how it will continue into the relationship. Better you put your foot down now and see things for what they are than give in to her and find out that it isn't going to work later when you are in deeper.