Should you be exclusive?

You know when you tell people you learn from your mistakes? well I made this huge mistake when I was in my early twenties. I followed my heart and not my head and at one point i dated two guys at the same time (even though it was unintentionally). I ended up breaking someones heart and even like 13 years later I still regret it. so yes i learned from my mistakes. 

So now the question is should you or when do you be exclusive? The thing is I've literally stop seeing and being in contact with guys after meeting maggie. Ok, maybe not after, maybe like a month after that when i decided there was some connection between us and how i can kinda see myself with this guy but all my friends thinks I'm crazy. They think i should be dating as many people as possible and only limit to the one when we both sit down and have that "talk". 

I am a very loyal person and I'm the kind of person who knows what I want, but there are times when I cant seem to decide what is best for me. Yes, its fine to be dating so many people and going out and having fun, but whats the point when if the only person your thinking about at that time is that one person? Is that fair? How do you decide which one is the best for you?

There are times when i'm so frustrated with the current situation that i just feel the need to just go and talk to other people and go out with them and do things and there are times when i tell myself, give it a chance.. dont rush into things as its all being already being written by God. I've been seeking guidance from Allah lately on this and in fact I'm getting more confuse then I've ever been.

Last month on my birthday, I literally ditch this one guy that i was kinda seeing before maggie came into the picture on the day itself when he promise to literally treat me like a princess on that day. Some of my friends thinks im stupid for doing so, but my logic is, I'm into this guy, I literally LIKE him! like the LIKE LIKE him.... and as a douche bag as he is, he is the only one that i am thinking off. ...

So Yes, the question remains... Should I continue to stop seeing guys or do i wait for Maggie  knowing that i dont know  if he likes me more than just a friend...... BUt OMG i am so in likes with him that currently no guy can top that up!