Namaskar,First of all, are you sure that you both have same gotra? Sometime you might be in confusion as one of my friend was becoz he was not 'sure' of his gotra. Secondly, very rarely there are two 'gotra' within the same surname. So if you are damn serious, ask your family to investigate little more.

You have to ask 'pundit' back home for any solution. This is like hiring lawyer for legal solution. LOL

If you could not find any solution forget everything except "Everything is fair in love and war".

Good luck bro!!