I [30M] just got out of a 6 year relationship with my girlfriend [28F] of 6 years and I’m wondering why I wasted my 20’s

So last weekend my girlfriend who was my best friend was cheating on me. The next day I did what I should’ve done years ago which is leave her and move on. My sadness and hurt went away pretty quick and I got to thinking of what I could have done the last 6 years if I was single. I could have slept with hundreds of women if I wanted, I could have saved money, I could have done so many things and traveled the world, but instead there I was spending my 20’s with one woman. Now I have a feeling of regret and I’m realizing that the last 6 years I lived my life for her. I guess I got what I deserved only being with only one woman.<br><br>&#x200B;