There was a thread about people who asked their twin flame if they felt it too. Pretty much answers your question, but your intuition is probably already telling you the truth.
On some level, they’re always going to be thinking of you. They can’t block it out if they try (and they probably do).
Whether or not they’re consciously aware of their thoughts and (more specifically) if they’re consciously aware that it’s you they’re thinking of… that depends on what they are in their awakening.