Upvote:3
It is hard to give a definite answer about your chances of getting the visa. Having a job is good, but visiting a boyfriend might mean you are seen as likely to stay illegally in the UK. There are lots of questions on this site in different countries where couples have done that!
You could apply, or maybe his father would let him go to Philippines if he was going with a group of his friends: if everything is genuine then his father is not unreasonable in worrying about the son going far from home. If it was with 2 friends then they could go sightseeing while you and him spend time together.
Do consider the suggestion from @harper to meet in another European country for your protection and safety. It is a bit complicated but if he is serious about you then he will do it.