First of all, if similar question already exists, I apologize - please provide a link to the other question.
Situation: I have been living in US for over 10 years (green card holder). My girlfriend came to US in June for 2.5 weeks via ESTA. This was her first visit to US; we went on a roadtrip, had tons of fun and tons of pictures together. Now, she's planning on coming back to US at the end of September again but for a longer stay (90 days). Maybe even longer, if we get along together, getting married and working on her immigration status.
1) With her being in the states for 2.5 weeks and then coming back to states in ~3 months for 90 days, would this cause any issues? I know there's no specific time that one needs to spend outside of US and it a lot depends on the officer at the airport. But do you see any issue with this time frame?
2) If asked, what should she state as the purpose of the visit? I know lying is not recommended, and we won't do that, but should she say that she's coming to see her boyfriend? I heard that it's not a good idea to say that you're coming to see bf/gf since then there might be an intention for staying in US.