My (25F) boyfriend (26M) has a child. A year or so old, hooked up with this girl way before he met me. We met a year ago and started dating in October of 2024. But he hid getting a text from her on march 10th about potentially being the father and then going to get a paternity test a few weeks ago. Just told me today that hes the father right after he got the results. Everything in me wants to leave. Selfishly maybe? Because i want to start a family with my partner. I never have ever wanted to be a stepmom. Is this a fucking dream???? Am I the asshole for immediately wanting to run!!!???