1) I think she loves you
2) I thought she loved you.
3) I thought she would love you.
But in a SciFi context, if one has a time machine and comes from the past,
exceptionally he may say: "Some time ago, in the past, I predicted the future, and then I thought she loves you now." Oh, but this is a mess, even in this context it is difficult to save it, it would be better to say "Some time ago, in the past, I predicted the future, I thought she would love you now." I can't think of a situation to use your original sentence.
PS Not a native speaker
Student or Learner