I agree with others that the chances of approval are extremely low but so long as the OP is completely honest there is no harm in trying. I'll also point out that even if the visa is approved that the OP would likely face rather extensive questioning on exit from the Philippines and potentially be off-boarded as Philippine Immigration may see this as a risk of trafficking. I strongly, suggest that the OP consider traveling to meet BF someplace else that also requires a VISA that is far easier to get for which a 700,000 Peso job and bank information would make approval of that Visa much more likely and which would raise less suspicions outbound with Philippine immigration. Consider Japan or S. Korea perhaps?
Bear in mind that 700,000 Peso a year is a good salary in the Philippines but not even meeting minimum wage in the USA. Of course, it's unlikely that the US Embassy will even ask about salary.
As others have said.. Be honest. but be prepared with alternate plans.