<human>: My girlfriend's parents seem have rather high expectations of her future husband. I'm not really sure what exactly they are, but she makes it sound like it's a big deal to each of the 3 of them. 

Girlfriend and I have been together a year and a half, and are starting to talk more about marriage. I have a good relationship with her parents, but it's not overly deep and I'm not sure how to set or receive expectations with them. I'm in no way concerned about ruining the relationship that my girlfriend and I have, but I'm new to both the whole parents thing *and* marriage thing. This is a good opportunity to get to know them, but I just have **no** idea how to start or prompt such a conversation, let alone what to expect. They have always been very nice, rational people, but also have obviously have some sort of expectations of their own.

I'm anticipating doing this alone (which is my choice) since I feel the conversation will likely focus more around me, but maybe it's better to do it with her as well? I'd consider this a minor point, but maybe it should be a bigger point? I'm certainly not afraid of her parents by any standard.

Provide a brief overview of the text.
<bot>: How do I start talking seriously with her parents about our relationship? What sort of things should I talk about to affirm them? Are there any things I should watch out for or be ready to respond to?