In the 책 she ends up with Damon, and I really don't see how she can't end up with Damon in the TV-show. But even so, even if SE doesn't get back together, doesn't mean there won't be any great scenes with them. Do 당신 really want to miss out on that?
I hate saying but Damon but of Course Stefan was her 1st 사랑 and Him being Her First 사랑 Can be Maybe a very Powerful Feeling He's the one who she 1st made 사랑 to and those memory's can have a big hold on someone but it does seem in a way like shes toying with their emotions. She tells Damon in front of Stefan That I 사랑 Damon to tease him and then going to Stefan to and talking to him & laughing to tease Damon.