He broke my heart and cheated on me. I can’t just give him what he wants from me - including forgiveness
You said you feel broken
There is no forgiveness involved.
Right after that incident in a marriage tours where we had the chance to talk over our upcoming union, he confessed about him cheating on me.
He confessed about his cheating on you.
That’s also when I decided to cut everything that connects us. But I still love him. Should I give him a second chance?
Then you asked us about second chance? Girl, re-read point 1-3. Now i asked you back, should you give him a second chance? Well, if someone cheated on me, there is no "coming back together as a lover". A cheater is a cheater. Period. But if you think you want to do it, be ready for next hurting scene like before.