No it's impossible not to feel something. I felt a bit smug that she had reverted back to a cat photo rather than one of them. I felt smug that this week she hadn't been "checking" him in everywhere or maybe their eating out nonstop had come to an end. But I made myself not go down the rabbit hole of thinking what it could mean or what they're doing etc.
Trust me I am not at some new level of detachment. I just don't let myself read into things......99% of the time I'm wrong and 100% of the time I'm spending more time thinking about whatever/whoever I'm obsessing over than they are thinking of me!