Search Results: is my ex boyfriend interested

A few years ago, I became friends with this nice girl at work. We meshed really well, and we had a mutual interest. But she had a boyfriend and a very young son.
Within a year, they split up and she started coming onto me. We expressed interest in dating, and we set up a date. Unfortunately, she stopped responding leading up to the date, and messaged me a few days later that she had some issues with her ex and that's why she didn't respond.
We set up a second date, and she changed things the morning of and said she'd actually meet me at the place because her sister wanted to come. With no time confirmation, I was at the place at the planned time and she wasn't. By the time she responded, I was already home. I felt stood up and said as much because she thought the situation was funny. I asked if she actually wanted to persue anything and she said she couldn't answer me at the moment.
We haven't talked since.
It's been a few months, and I messaged her to. follow up with her and ask how she was doing. She responded saying she was doing good. But asked how I was doing and if I had Playstation.
I told her and responded and she has yet to respond.
Is this a good sign? Or should I be cautious? I feel like she stood me up before

I was working with this really nice lady, at least so I thought, a few years ago and we hit things off and had chemistry together. I was in the middle of a break up and she said she was amazed with how much love and care I was giving my ex.
We didn't date because she had a boyfriend and a son, but by the end of the summer, they had split and we're in custody battles.
So we started talking and I asked her out. We were originally gonna see mission Impossible for the first date, but she never responded the day of the date.
She said something with her ex came up and she wasn't able to respond.
She said a few weeks later she was talking with someone else and appreciated my interest.
About a month later she started talking to me again, and we arranged a dinner date, but her sister wanted to come and she said they'd all meet me at the place. They didn't show up, and I messaged her asking where she was and she said they weren't ready like a half hour later. I asked why I couldn't get a heads up, and she said she was busy. I got mad and asked her what her intentions were and she said she couldn't answer me at that moment.
After a week, I blocked her.

Did I do the right thing?
Was I even gonna get a fair try?