3 years gone...ish?

Recently went through a breakup after 3 years together. What happened in short words, I betrayed his trust by having inappropriate conversations with another man. Those conversations didn't start overnight, but because I found someone that shared my experience of losing a grandparent.

My ex thinks that everything that happens stems from me not seeking help after my grandpa passed to move forward with my grief. I agree with him.

Good news, we talk every day. He is committed to stick through me finally getting help and learning how to process the grief while I continue to earn his trust back. He's the best, I will definetly admit.

My biggest worry is if we go one day without talking, does that mean there is no chance.