Guys, What Do I Do?

So I have liked my coworker as more than a friend for awhile now. I can see the signs that he likes me back, but I think he’s just shy. He talks to me on a deeper level when we’re alone, is protective of me, when I expressed anxiety at learning something new he built my confidence up, remembers all the little things I’ve ever told him, etc.

Well…yesterday I finally mustered up the courage to tell him how I feel. I think I really stunned him, and he said that he didn’t know what to say. I told him he didn’t need to say anything now, but he was smiling a lot bigger than normal the rest of the day. He hasn’t said anything to me at all yet about how he may feel. Should I be worried about whether he’ll ever tell me how he feels?

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Well, he just informed me that he has a girlfriend... they've been doing long distance for three years. I absolutely will not interfere in this relationship, and I won't be doing anything to make him feel upset either. But I have one final question. Why does he seem to still like me?
Guys, What Do I Do?
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