I am not sure what species this is. Once established, this Phillippines native reward with umbels of red hairy flowers. I have found the bloom to be scentless. The vine itself is not robust and it requires bright light to be happy. Flower closeup of H. mindorensis Hoya mcgillivrayii is a close relative of onchoides and archiboldiana, first described by F.M. Bailey in 1914 and has since been highly sought after.
Several forms are available and the one shown has white centre.
The leaves of these species are remarkably similar. This is a pink coloured form with white centre, other colour forms are also known. A sunny place is required to bloom. These plant has been previously identified as H. mcgillivrayii until Berit from Sweden pointed out to me. Dischidia hirsuta is a common epiphytes in lowland to mid-altitude forests in SE Asia.