"NCIS: Hawai'i" fans know that Kate and Lucy's relationship hasn't always been smooth sailing. Kate worried that a workplace relationship would undermine her carefully cultivated authority, but her connection with Lucy was too strong to ignore. Now that they've made things official, Kate has no problem dropping by the office to seek counsel from Lucy, and fans are elated by how far the couple has come. 

"Kate really came to see Lucy so that she can give her moral support," @gini_us tweeted, "because she is the only one who can calm her down. I am crying."

Kate has worked through the trust issues that kept her from pursuing Lucy from the beginning, but now viewers see the other worries that keep her up at night. For instance, it's clear Kate sometimes doubts her abilities at work. Thankfully, Lucy is there to remind her that she's more than capable at her job. 

"Kate's anxiety is showing," @GoWhereYouGrow posted, "but I'm glad she has Lucy to support her." Overall, viewers love the direction Kate and Lucy's relationship is going in.

"They're such a couple goals," @_allthelilie tweeted, "being each other's support system, always there for each other." 

As a couple, Lucy and Kate continue to grow and change. Their relationship still has plenty of storytelling potential, and it will be interesting to see how these characters continue to develop moving forward.