You've got to keep going. Your partner is out there. You've got to stay true to your path, true to your goals and boundaries, and give each person the flexibility to show up in your life and be a YES.
The goal is never to blame the other person for the breakup, even if they were the reason you are breaking up. Always take your responsibility for the miss. And make it about the chemistry, the mix, the overall relationship and not about them or their poor behavior. Remember, you are leaving the relationship, not trying to teach them a lesson or educate them.
Don't give up. Just because all of your previous relationships have failed, does not mean that the next date might be The One.
When sex enters a relationship everything changes and your thinking is going to be challenged for 6 months to a year. Don't trust your thoughts during this period. Don't make any big decisions together. If you get to two red flags, again, BOLT.
Don't give up on love. It's out there. Make sure you're putting out a message that's going to attract the right people.
When you are involved in something vigorous, your attention and judgment are often heightened. You are more likely to get a true read on a partner while you are playing tennis, for example.
I'm a handful. I'm whimsical. I'm capricious. I have a lot of irons in the fire. And, sure, I demand a woman with a high level of confidence and well-seasoned experience in relationship building. We've got to both be into the evolution of becoming a couple.
If my friend is staying in the "dating" and "fooling around" mode, he's not going to gain any long-term insights.