Is this subjective or a clear comma error

[Stephanie Runyon]

I have a couple questions about some sentences that I am not sure if they are subjective errors, or if I should confirm them as clear errors?

At first she was disappointed because she enjoyed being with him.
- I am thinking there should be a comma after the word first; is this subjective though?

And it’s a good thing she did as that night led to several firsts
- possibly a comma is needed after the word did?

Any suggestions would be helpful for me.

[kandscreeley]

For the first, I would count that as subjective. Style guides vary on this. Short opening phrases of less than four words don't need a comma in some.

The second is probably subjective as well. If as means because, no comma is needed in many style guides. However, there's a strong case for a comma here because the sentence is more understandable with one.

You could count them both as uncounted errors of this is for a review.

[Stephanie Runyon]

Thank you for the help. I was debating on how to list them before I turned in my review.