There's no rule book stating you have to wear a certain style of clothing, behave a certain way, or listen to a certain band to identify as a goth.
This closes off your main body from her, which will make her feel like you are closed off from her.
The big tiddys are a big sell but the goth thing is a turnoff.
We're an all girl team of three covering the globe.
A dimly lit room, restaurant, or coffee house can also put her at ease and make her feel more attracted to you.