As per your birth chart your Lagana and Rashi is Capricorn. Rahu aspects the 7th house which is not good. Just because some affliction it does not mean that you will have two marriage. Rahu does create problems, but by doing the Rahu remedies you can reduce its malefic effects.

Blessings,

Navneet Khanna
Astrologer

Marriage is defined as the union of body, mind and soul between opposite sexes and this happens many times in our life with the same partner or different partners as per the customs and traditions of communities. The ceremonies and felicitations attached to it are just incidental.