Unpack your baggage in front of them.
Loving someone who has been cheated on is loving someone whose faith in love has been dented.
This is both on your part and theirs.

Jérôme Licht
Communicate with honesty, the more you do so, the more they feel the ability to trust you.
You do so always with honesty, always with transparency, and always with communication.
Unpack your baggage in front of them.
But you also have to be patient and give them as much time as they need.
Affirmation is something they wont want to ask you for, but something they not only crave but need.
Someone who once questioned themselves, someone who once compared themselves to someone else.
Someone who had to work to get their confidence back.
If youre going to love someone who has been cheated on be understanding.
A fear that can dissipate with simple honesty, communication, and reassurance.
They ask questions and they want these things from you to keep them from overthinking.
With time youll notice these questions become less and less, and as well as do these expectations.
This is someone who knows how to pick themselves back up after being heartbroken.
Theyve gotten on a first name basis with their worth and their strength.