How do you Trust Again After Being Betrayed by Someone you Love?
Unfortunately, there is no way to guarantee that it doesn't happen again or that you won't get hurt. It's kind of the "price of admission" to love that you run a risk of getting hurt.
But now that you've been through what you have, you can learn from it and pay attention in deeper and newer ways that you may not have known before.
Analyze what happened in your last relationship and look for signs, clues, red flags, etc that you didn't catch last time and know that this time you aren't starting from square one, you're starting from experience.
This is something that I help my private clients through, if you find yourself struggling with the concept of trust and getting back out there, I would love to help you!