Unified push is a way to get live notifications on your phone. Google provides Firebase Cloud Messaging to do this with Google Play Services and unified push offers an alternative. If you want to know more about the topic, you read more on https://unifiedpush.org/

Please don’t be harsh on yourself. You didn’t fall for him - it’s normal to be attracted to others, especially in this case where you get along well. Did you talk to any of your friends? I’m sure they will support you if you ask them to. I had a somewhat similar experience a while ago in an organization, I’m quite active in. May I ask you what organization you’re in?