<human>: Can you summarize the given text in a few sentences?

I have been hearing a lot lately about how men should explore the world and get with women from youtube videos from RSDBrad...Those videos seem very persuasive. However, I have been with my girlfriend (first, and we gave each other the first time)for almost 3 years and we felt we are perfect for each other. We love each other so much and we have lovely memories and ... I got her pregnant once... I think she is (at least for now) the perfect girl I can marry with but seems like I met her way too early and a lots of my friends have been telling me I should stop hanging out with her that much and reach out to more girls, for the reason that she does not look that great, although I think she looks okay.. probably because I got so used to it. 

Anyways, I mean... I am confused and sad to ask this, but I would love to hear from you wise people. For now I really dont feel like break up at all, and even if I do, I dont want to be the one who is breaking up with her. Although I think maybe I should but should I break up with the one I truly loved just because I can be a better man? I feel like this move made me very irresponsible and selfish. 

Seriously. Any advice?
<bot>: Should I break up with my first girlfriend (we are both 22 year-old) who has been with me for 3 years for the reason of a man should explore more about the world and been with more women?