Hi Janice,
For wedding dates selection, I will not go into both your Bazi analysis. I will only use your Bazi to derive your wedding dates, not to analyse your marriage and compatibility. That is a separate service under Bazi Consultation.
If you are referring to Bazi Destiny Analysis consultation, then the answer is Yes and No. Compatibility is not just simply one character clash to another in a Bazi. That is way too superficial.
It also means to understand each other's character and if you can accept that type of character. For eg, if the guy has lots of Tao Hua (Romance luck) in his destiny chart, it might mean that 9/10 of his friends are all girls. To him, going out with them for dinner is normal friendship. But if his girlfriend's chart indicate that she is someone that gets jealous easily, then to her, every girl that he went out with is an affair and she cannot stand it and will get paranoid every single time. Hence, as you can see, do you think this couple will be able to get along happily? I foresee arguments and quarrels often.
The answer can also be 'No'. In Bazi Destiny analysis, it works this way. If you don't know your destiny, it will surely happen. If you know, you can change it. However, there is no miracle cure. You cannot buy crystals or jades to wear and think that it will change your destiny. I wish it could be changed that easily, but we are not living in Harry Potter movies. Changes to your destiny depends on yourself, your own actions and decisions. Feng Shui can help as well.
Hence given the above example, arguments might often result due to the girl's jealousy. If the guy is sensitive and really loves his spouse, he might go out less with his girlfriends, knowing that his spouse will get jealous easily while at the same time, the girl must also learn to be more open minded and understand that they are just friends. In this way, arguments might be lesser and they might just savage a marriage.
To sum up, it is about understanding each other and if each of you can accept the other's character. If you can't, it can be deemed incompatible with each other.
This is not a perfect example but i hope you get what i mean.
Of course for marriage analysis, it is much more complex than this. There could also be chances of extra-marital affairs happening to your other half as well. It can show in a Bazi Destiny Chart. Hence, even if both of you are compatible, it doesn't mean this will not occur as this goes beyond compatibility...
Hope this helps