Hi Sweet_Cookie, Welcome to Filipino UK Forum.
I agree to what Kuya Peter said. In addition to that based on my own experienced.
I have granted a UK visitor visa in two occassions and my sponsor was my boyfriend (my fiance now) . If you have decided to apply for a tourist visa that is your own choice although I can see from the informations you have given in your post that it will be easier for you to get a fiancee visa although the visa fee is a lot dearer than a visit visa.
If you did not overstayed in the UK before I dont think they will refused your application, because you already proved them that you did not violated any UK rules. In my case before, my boyfriend (my fiance now) just declared in his supporting letter that he is sponsoring me as his visitor and the reason why he wanted me to come is to have more time together, to introduce me to his family and friends and show me his country. You can make your own letter as well to explain the purpose of your visit. I think if you also tell them that you are planning to get married here in the Philippines next year will help to convince the ECO that you still have intension to go back to the Philippines. Applying for visitor visa the ECO must be convinced that you have enough proof that you have the reason to go back to your country of origin and you or your sponsor have enough accommodation and funds that available for you during your stay in the UK. Yes you can show to the British Embassy some of your pictures together and other evidence of your relationships. I hope this helps. Goodluck.
