you have what is known as 5-9 bhakoot dosha as your Rashi is Aries and that of the girl is Sagittarius. 5 – 9 Bhakoot dosha is not good on the relationship and children. It is primarily deals with love and affection. Due to this factor it is likely that both the couples will have strong likes and dislikes which will become the reason for dispute. Moon is the mind of an native as per Vedic Astrology, it is the most important planet in Vedic chart. Matching of the Moon is very important so that the couples can solve issues. Also your Kundali Milan score is 25.5 and not 28. The Tara and Yoni score is 1.5 out of 3 and 2 out of 4 respectively.
Bhakoot dosha should not be ignored does not mean that marriage should be avoided. Actually you need to study the Karka of Love and children that is Venus and Jupiter in both the horoscopes. If the Karkas are strong and well positioned , and giving results then bhakoot can be avoided. If the karka of love and children are also afflicted and do not have strength then surely bhakoot should not be avoided. Also you need to take Mangal Dosha, and strength of 7th house and lord for analysing marriage.
Many charts I have seen may not have Bhakoot dosha but their 7th lord is signifying separation then even then marriage will break. I believe that Gun milan is important but Graha milan is more important as it tell us exactly what planets promise in the horoscope.
You may take the Paid service “Horoscope Matching Kundali Milan” for a detailed horoscope matching. The link is given below for your reference.