Quick question????

In Pennsylvania, after a divorce order has been filed, can a spousal support order be modified? I am a male, ignore my user name, lol. My soon to be ex filed for spousal support almost 2 years ago. She gets half my pay. We have since filed for the divorce. Just playing the waiting game now. I was told the spousal support order can not be motified once the divorce has been filed, by either party. She is now threatening to take me back to court for more support. She gained jurisdiction through domicile. I will plan to file again in my county after the 90 days since she isn't going to budge any with the dirvorce. I am only hoping this time I will get jurisdiction due to her not being cooperative. Thanks You.