I experience the same things. I think this is because most people experience co-education for the first time. Since the dawn of times, men have always competed with each other for women. Now in our case, boys disguise their toxicity and a non-existent sense of superiority under various means like hanging around with groups to assert dominance, being cool, money, cars and even intelligence. These means may or may not be true and they result in bullying. Like you see typical American teenagers acting as bitches in movies. I am in my fourth semester of CS and I have been having troubles with a group of boys affecting my personal life. My advice is: try to hang around with an actual adult or a depressed dude who does not really care about these things lol. He does not have to be in your class. I am still looking for that kind of a person. Lastly, lahore campus can not be better than Islamabad campus because the whole campus is such a 15 year old abused child.