Perhaps I’m being the devil’s advocate here…. but why shouldn’t the ECO question your previous “history” ?
As you’ve mentioned, you had Filipina girlfriend(s) before, and applied for visitor visa(s)… which I assume
were unsuccessful. So, having been unsuccessful on that score, you now turn to the fiancee visa route.
You can see how this looks to the ECO can’t you ????
You should have foreseen this problem, and written a covering letter explaining the earlier relationships…
ie just divorced so not such of what I wanted….. young & naïve…… was flattered that a woman took an
interest in me & rushed into something…… etc etc.
The letter could have answered some of his (the ECO) doubts.
…. Also, with this past “history” ….. perhaps more visits would have been appropriate before filing, so
showing this is the TRUE, and LASTING relationship.