Are each row for one of the person then one for the connection between them?
Nope. First row is practical aspect of Person A’s intentions (the foundation), second row is underlying hopes of Person A, which may be causing what appeared in the first row (it provides more insight on what appears in the first row)), and third row is likely outcome of where those intentions will go. If that makes any sense.
Ok, so here is how I would interpret the spread:
First row -> only earth elements. There is a sense of slowness and waiting for the right time but its because they are "perfectionist" and want to make things right / look at every small details - they are very attached to the stability and the quality of the connection / their life. But because of the slowness, you may feel like nothing is happening.
Second row -> the person is trying to weight things between taking things lightly or leveling up to a real commitment that will create a dependency for them. With the 9 of pentacles rx, they may not feel like they are yet where they want to be in their own life to commit.
Ultimately, they want to make the "right" decision, be fair and thoughtful. Stability and commitment is definitely in their mind.
Third row -> They are not gonna shy away from their responsibility and will take action in a mature way when they have made up their mind. with the 2 of pentacles and the lovers, I don't think they have made their decision yet - They know that this decision will be a "life-changing" type and they need to weight all the good / bad.
Is your person a virgo or a taurus? there are a lot of earth energies on this spread.
Hope this helps