As other already state well, from the immigration point of view, you are not and never will be in a relationship with someone you never met. That so is stated without any margin for doubts in the document you have shown us.
After having this precent permanently archived on your record, no other course of action like having sufficient funds for a tourist visa will work, as your history will work against them believing your true reasons. So be aware of other advices on the thread as insisting on that course of action, getting denied entry multiple times, and and on top of it being registered as someone lying might also earn you an entry ban for 5 to 10 years. (e.g. a tourist visa with sufficient genuine funds might have worked without any history/denial on your record, but that ship has already sailed)
I have a Philippine wife and often random people (or not so random) ask her for opinions and help about migrating/visiting.
We have seen already several cases when even having a marriage promise, not following the established bureaucratic steps, and with records of previous visits, that the bride has seen her right of entry/visa refused. We also know of a couple of cases were couples had to marry in the Phillipines to solve their situation.
I am afraid you might only be spending time and money coming on your own without precedents or verifiable ties.
The right course of action seems to be your boyfriend visiting you, with the help of a doctor and medication to overcome his fears. Or as per the comments, meeting in a neutral country where you can gain entry easily. However, I suspect, for building a case for proving a relationship, it would work out better he visiting you at home.