Why isn't anyone responding to me?
Someone can be logged in without checking the chat, busy elsewhere, or simply not wanting to respond. The presence indicator doesn't guarantee they've read your message or are available to chat.
Check without sending multiple messages
Check if your message appears in the correct chat or private message and if an error is displayed. If the recipient is offline, a saved message between Dialova accounts can be viewed later. A private message restriction or block can also prevent an exchange.
Change your approach, don't insist
A concrete message related to a common interest is easier to pick up than a simple “how’s it going?” sent repeatedly. Try participating in the chat, where multiple people can respond. A measured follow-up may be enough; silence isn't an invitation to solicit the person from another account.