Hello specialneedsmom: In this situation I might be inclined to send a note by "snail-mail"(assuming you know the person's mailing address) just saying that I had e-mailed & texted & just wanted to make sure that they had received my messages. Then if I didn't hear anything, I'd let it go. If I didn't know the person's mailing address, I might try one more e-mail or text, but then I would drop it. I think you're correct. Continuing to e-mail / text, with no reply, at some point begins to look like harassment.