Board Thread:General Discussion/@comment-27134893-20160207013105/@comment-679780-20160208192947

Elise only knew Sonic for what.... two or three days? Most of that time he was kidnapped and she still wanted to get past Act 1 with Sonic.

While Sonic doesn't always get along with Amy, he still regards her as a friend and at times give her a break (like that date he promised in Sonic & the Black Knight) they've had history together since Sonic CD and while doesn't like her constant romantic advances, has always tolerated her company and friendship. It's why to me more likely the two may hook-up once they mature more.