<human>: Can you provide a brief rundown of the text in within 3 sentences?

I'm a 25 year old male. I've dated regularly, and am still great friends with most of my exes. My sex life has always been very active, and I have plenty of friends. After the last two relationships I've had with two amazing women, I've decided I just don't want to have a relationship. I don't want to spend the money or time or effort. It's not that they aren't amazing people, it's just that there are things I want to do in my time off that don't involve cuddling or even spending time with someone.
                                                                                                                                                                                                                  

I feel like I'm just not made for a relationship. And I love sex, but right now I'd rather study and see my friends for weekly dancing or dinner. Some of my friends are married in wonderful relationships, and my parents and sister have all been happily married for ages so I have plenty of positive examples. I just don't want to, and my family always asks why. 

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<bot>: Am I selfish for not wanting to have a romantic relationship with anyone right now? How do I explain that feeling to my friends and family?