A Million Little Things Soundtrack

What is the name of the song and who sings it that was played the last 5 minutes of the show

Who performs the "Only You" song in this episode?

Does anyone know the name of the piano piece Maggie started to play at the very end?

What is the name of the song played by Alexa during power outage while Regina cooked?

Who sings the theme song

Who?

Does anyone know what song is playing when Maggie is in the bar and meets the man who dares her to grab mints?

The beautiful song on this episode of A MILLION LITTLE THINGS was I JUST DON'T THINK I'LL EVER GET OVER YOU by Colin Hay

2?22 What was the song from tonight's show (at the end) with the words :( Is what I'm feeling really love0

I heard the words -- broken into better days -- towards the end of the show. Anyone know song? Thanks