She made a profile as She-Hulk. Her dates were expecting a date with She-Hulk. She went on the dates as She-Hulk. No one was Catfished.
This is not complicated. If she used her She-Hulk profile to get the dates and then showed up to the dates as Jen...you could maybe consider that catfishing. Though, since they are the same person and that's a publicly known fact, it still really wouldn't be catfishing. When you are going on a date with She-Hulk...you are going on a date with Jen Walters.