First stop beating yourself up...we all get lonely and we all do things we regret later...Beating yourself up wont help, whats done is done...
Now tell me why in Gods name would you even consider telling your ex???? First off what you do anymore is not his business. You dont owe him a daily report of you life, as he doesnt owe you one of his... So let one be is my best advice. The only reason to tell an ex something like that would be an attempt to make him jealous, and jealous he wont be as nearly as he will possibly be hurt, look at you cheaply (even though your not) or he may have an I dont care attitude.
First stop beating yourself up...we all get lonely and we all do things we regret later...Beating yourself up wont help, whats done is done...
Now tell me why in Gods name would you even consider telling your ex???? First off what you do anymore is not his business. You dont owe him a daily report of you life, as he doesnt owe you one of his... So let one be is my best advice. The only reason to tell an ex something like that would be an attempt to make him jealous, and jealous he wont be as nearly as he will possibly be hurt, look at you cheaply (even though your not) or he may have an I dont care attitude.
Great work keeping up your NC!
You aren't stupid. You are human.