I am a big fan of 'My Hero Academia', and so I would say that Uraraka has a very deep fondness for Deku in her heart.The source of Uraraka's admiration was his stubborn willpower and near limitless muscle. While she says little, her emotions have been apparent through the series in occasional, inexplicable blushes and giggles or perhaps gasps at their close conversations.
Even though it has never come out in so many words that Uraraka is in love with Deku, from all kinds of hints throughout the whole show you can see how deeply she feels taking off for one last battle