What would you do?

My son got accepted into the Head Start program and I was wondering if I should text his dad and tell him although he hasn’t been financially supportive since December 2016, and hasn’t seen our since in almost a year (will be a year at the end of the month) I just feel I should tell him instead of him finding out from some random person or on Facebook or something. So many people have told me that is how he should find out, he doesn’t deserve to know what’s going on if he’s going to be the way he is. I just care about other people’s feelings probably a lot more than I should, and tbh at the same time I want to gloat about how well we’ve been doing without him, sounds terrible I know but he constantly told me we wouldn’t do good without him.🤦🏻‍♀️😅