Lots of questions and a good deal of doubt.

[MrBond]

"I think my W is a "quality time" person."

Never guess. The 5LL only works when there's a reconciliation.

"When I ended the convo her tone of voice seemed a little sad."

Mindreading. You should stop that habit.

"Well, I sat down and thought about the 5LLs and if her love language is "quality time","

Which you aren't sure it is.

"should I try to open up conversation a little more instead of worrying about being the first to end convos."

Try a little at a time.

"I don't think this was pursuing,"

It was obviously pursuing and you needed to get a "fix" from her.

"If her love language is "quality time", is it so bad to let her know that I am thinking about her from time to time?"

Yes.

"Maybe try to hang in the conovs a little longer?"

Just move a little at a time. See how things go naturally.