Why is it said that at a certain stage, boundaries are also re-established in intimate relationships? In the beginning of an intimate relationship, one party (A) is often more likely to be in a state of continuous giving and expressing love, while the other party (B) gradually gets used to or even defaults to this kind of giving, forming a stable one-way supply pattern. But as the relationship continues to develop, A may gradually realize that this pattern is unbalanced, and thus begins to adjust their interaction style, shifting the relationship from "unconditional giving" to "feedback-based interaction": you respect me, I respect you; you respond to my giving, I continue to get closer to you; if there is no response or if the other party still takes it for granted and consumes without reciprocation, A will also choose to stop continuing to give. This change is not about becoming indifferent or deliberately "criticizing" the other person, but rather a natural reconstruction after the relationship shifts from one-way maintenance to two-way mutual benefit. Essentially, it is about re-establishing boundaries, bringing love and investment back onto a track where they need to be responded to.