Am I wrong for blocking my mom friend?

I made a mom friend on the app Peanut. Right when we started texting she came off pretty strong and was already flooding me with pictures of her baby after 2 minutes of talking. Idk I just don't think I would be sendi pictures of my kids that soon. But she is a sahm and I think she's just lonely. Things were fine but she wanted to text all the time. I have 3 kids. When I met her I was pregnant with my third. First thing that happened that annoyed me is after I had my son she would blow up my phone and accuse me of being a bad friend and that I'm ignoring her. I tell her that I have a new baby now and I'm just tired. That I'm not trying to ignore her. She said whatever. Then when I celebrating my older kids dad's birthday (he died 5 years ago) she was blowing up my phone again and when I told her what I was doing she got mad at me for not responding and telling her sooner. Last straw was today. I work at the before and after school program and our 5th graders had a commencement ceremony and I promised them I would be there even in my maternity leave. I told my friend after it and that if I don't answer that is why. Guess who texted me 14x, called me 6x and left me angry voicemails saying she knows I'm not still at the commencement ceremony. When I texted her and told her I was she said ",Guess your life is more important than my feelings." I've known this girl not even 3 months yet. I blocked her. I feel bad because she's a sahm and probably lonely but she refused to respect any boundaries.