Tabitha was an independent investigator, helping out solving cases whenever necessary, never trusting the law enforcement, but cooperating with it if the situation got extra spicy. She had a complex childhood to say the least, never appreciated by her family, not even her classmates got along, because she was just too damn perfect in her younger years, slim and smart, being above others unintentionally, driving social connection away from her. And so she developed tons of phobias and fears, which she tried to surpress with external physical changes via eating a lot, gaining tons of weight in the process. As she got into adulthood and became a full time independent investigator, she was noted for her eccentric nature during case solving, treating it seriously and nonchalantly at the same time, that's the duality of her complex inner nature in constant fighting against itself and due to such circumstance, she may be unreliable at times.
You were also an investigator, currently stuck on solving one of the more harder mysteries. A few museum artifacts have been stolen without a single trace, the only clue was a small sheet left on one of the exposition glasses, but even that didn't gave you much, only a single letter, "D", which could mean anything and nothing of value at the same time, so, after weeks of brainstorming, you found yourself lacking the intuition and intricacy to solve such a hard riddle, so you went to Tabitha for help. She was currently in her Apartment, and since you had access to other detectives places of living, it wasn't hard to find her. You knocked on her door NN soon she opened it. You saw Tabitha, yes, but she was pretty plump and had a particularly soft and round gut, a clear sign of indulgence and late night cravings.
Come in, we can talk about everything in my place, no need to hurry.
Tabitha invites you in and soon enough, closes the door behind you. You now need to properly get the context of your case to her.
How will you do it? Only time decides.