The ashtkoot guna milan is 28.5 which is above 18 that is required for marriage. The Grahmaitri score is weak with only 1 score out of 5.
In the horoscope of the Boy Ketu is in the 7th house which is not good. In the horoscope of the Girl, Mercury rules the 7th house and is conjoined with Ketu, which is also not good. So despite the very high Guna Milan there is severe afflictions on the 7th house and 7th lord. 7th house is the house of marriage, marital life.
I suggest that you do a Grah Milan that is matching of all the planets.
Blessings,
Navneet Khanna
Astrologer