Do you get suspicious if you s/o changes their sexual technique, and does something new?

I'm talkin about just outta the blue, they change up things from what they normally do in the bedroom. Is that a cause for concern? Do you ask questions? Or just chalk it up as their way to spice things up?

I ask b/c a lot of women follow a man's pattern. The instant he strays from that, then red flags go off in their head. If he tries to do something different in the bedroom, a lot women get suspicious of him cheating.

But is that a fair assessment?