Kelly Chambers: Name and Image Change (Mass Effect 3)

Good day. There is a paragraph of text from the Mass Effect Wiki:
Quote Also, if Kelly does not change her image, during the attack on the Citadel, Cerberus soldiers will recognize her and kill her, which will become known from the words of a batarian refugee standing near where Kelly used to be ... If Kelly survives, when she meets, she will thank the captain for another rescue, and if earlier there was an affair between them (which reached the stage of dancing in the cabin), the lovers can retire and continue the relationship when choosing the necessary lines in the dialogue; however, the intimate scene itself is absent in the game. After that, she will hand over to the captain her personal photo, which will later appear on the table in Shepard's cabin.
(http://ru.masseffect.wikia.com/wiki/Kelly_Chambers)
The question is, how will the continuation of the relationship affect the main thread of the relationship in the game? For example, I "build a relationship" with Liara.