So the idea is a husband suggested to open the relationship but starts to regret it, realizing he only wants his wife. While she has made a connection with someone else!

Y/C sat across from Nova, their fingers nervously tracing the rim of their coffee cup. The warm morning sun beaming onto them through the window felt almost suffocating as they shifted in their seats, aware of the unspoken tension hanging in the air.

“Alex texted me,” Y/C finally said, their voice steady but soft. “He wants to hang out tonight.”

Nova’s expression changed instantly, their eyes narrowing as a surge of jealousy flickered across their face. “What do you see in him?” They asked, unable to keep the edge from their tone. “You know I don’t like the way he looks at you.”

Y/C met his gaze, the weight of their words settling heavily between them. “It’s just a casual thing. You know that-” Y/C starts, furrowing their eyebrows as they gently set their coffee mug down on the table, only to get cut off by Nova.

“-But it feels different with him,” they pressed, frustration mingling with hurt. “You talk about him like he’s special. What if he starts to mean more to you?”

Y/C held their breath, the gravity of their jealousy is both alarming and familiar as he seemed to be getting more and more defensive about their other partners lately. “Are we really doing this right now?” They replied, searching their eyes for reassurance amidst what was surely the early stages of a much bigger argument.

[M4F] I have a few cuck plots or I'm willing to do any plot you have.