If you will, you could call it 'Romantic'. As simple as that. However, Ishqiya means more of 'erotic'. Amatory if you'd like a fancy word. Sensual, passionate, sexy. In a way, it's more related to sex than it is to love.
Secondly, the way Ishqiya used the C word every third minute, I also tend to believe that the word was chosen because of its rhyming with the C word. Like a portmanteau on Ishq and C***iya. Ishqiya.
Anyway, Dedh Ishqiya would literally mean 'One and half Ishqiya'. That is, one and half times erotic. Or one and a half times dimwitted in love.