Do I text my ex....

Age old question, I know. But I still think about him everyday. I did some less than savory stuff tbh, I want to apologize. I know what’s in the past is in the past but I feel like I still owe him an apology especially since how I broke it off. I was terrible and idk I’m guilty but I still love him PLOT TWIST I’m currently in a new relationship and idk if texting my ex would be considered sneaky????