What is the interpretation of a dream that includes fighting and blood after performing Istikhara prayer, and does it indicate the unsuitability of the girl for marriage?

Interpreting dreams is not our specialty. We inform you that when a Muslim performs Istikhara (prayer for guidance), they should be content with what Allah has decreed for them. So, if you see that the girl is suitable in terms of her religious commitment and character, then marry her. If she is not, then leave her. Dreams do not entail any consequences, nor do they establish anything.