My sister in law finally had her baby! And I don't think I'm really invited to go see her. They left…

My sister in law finally had her baby! And I don't think I'm really invited to go see her. They left me out of the group message when she went into labor, and they keep telling my boyfriend that HE can come see her anytime, kind of emphasizing and hinting that I am not really invited. Oh well. My boyfriend is upset that I didn't go with him to see her, but I just refuse to go somewhere I don't feel like I'm wanted. Sorry, but I would honestly rather stay home. Anytime we're all together I get ignored and pushed out of the conversation so you know, whatever.