Some yes, some no. I’ve had a lot of short relationships, and only one long one.
If you’re in a relationship with an abusive person, a person who is barely interested in you, or a person who always takes and rarely gives, then you have to break up. Unfortunately, many people will go through such relationships in their life.
Don’t throw away your own life to find love. If you are playing the game while desperate, you may get taken advantage of. It may be better not to play. It’s ok to be single.
Have you imported the tails-signing.key yet? Usually you can double-click on that to import it using whatever graphical gpg frontend is set up on your system. It may ask you how well you trust the owner of the key. You can answer that question however you want without affecting this verification process.
Next, it looks like you run the instructions from this page: https://tails.net/install/expert/index.en.html#verify
Some of those command line parameters look a little paranoid. The basic command you want to run is:
gpg --verify somefile.sig somefile.img