To start off, I'm not an expert astrologer but I've had a keen interest in astrology over the years and have gathered some insightful observations that may serve useful to you. With that said, take everything I say with a grain of salt and consult a practicing astrologer near your town before you reach a conclusive decision.
So from my understanding, you're highly concerned about your compatibility score with your girlfriend which would result in whether your parents and hers agree allowing the both of you to marry. Here's my take:
1) If both of you have been together for a long enough time period (I'd say a minimum of over a one year time period where you've spent a significant amount of time getting to know each other), you'd have enough of a sample size to evaluate your relationship. Key observations to note down would be how often the both of you fight, how well the both of you can compromise, and if both of you can connect at a close wave length. It is crucial to have both of your moons as close as possible to connect mentally (your moon should be before hers). It is also crucial to look at the placement of Venus to make sure you two connect well on a more physical level (Again, your Venus before hers would be ideal).
2) The matching system used is more cultural and in some cases outdated. With all factors considered, if certain areas don't match up, it's not a reason for the both of you to fret. It's more an opportunity for both of you to figure out what you really want. There are so many factors that would not even be used in consideration to modern day society.
3) I understand how you feel and I wish you the best of luck in these perplexing times. Once you consult a practicing astrologer, you'll have a tangible feel of the dynamics of your relationship. Sometimes, Dashas and Transits play a huge factor in relationship- how you're feeling this current moment can change when a major Dasha shift occurs. All of these factors need to come into play to make a legitimate prediction. To be forewarned, is to be forearmed.
I hope this helped Parmeet; best wishes to you and you're girlfriend- I hope it all works out
Keep your head up,
VKR
