Am I wrong for feeling like this is completely disrespectful?

My sons dad and I broke up a week and a half before finding out we had gotten pregnant. We tried to work on things per his request and broke up officially a year ago. He and his gf were together shortly after or possibly during the end of our relationship. They broke up twice shortly after I had our son (sept) in which he tried to convince me to work things out with him and us to be a “family” and I said heck to the no. Our values are far too different and he’s a high functioning alcoholic. Anyhoo a girl sent this to me saying she was repulsed by it, him claiming that she’s the mother of MY son. I’m irked to the core. This was several days ago and he’s had two visits since and I haven’t said anything and I’m tempted to but then again it wouldn’t accomplish anything except making him irritated as I am. She hasn’t done ANYTHING to support or provide for my son , ffs his own father has barely started paying child support only because the court got involved. And for pettiness sake, he started building that rat rod when we made him lol. I’m just annoyed and feel like it’s completely disrespectful to me. It’s one thing if they were together for years and she’s been supportive/involved but she hasn’t been. She got pissed at him for canceling boating plans the day our son was born. And lit him up everytime he came for visits when our son was newborn. She’s only half assed ok now because visits involve her since he can’t stop for 2 hours to take care of his own damn son. Sorry ranting. I’m just irritated and want to know if I’m wrong for being as such

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