Ask AI: do i respond to the guy i was talking to for three months that i left on open

It depends on the circumstances of your conversation with him and why you left him on open. If you genuinely forgot or were too busy to reply, it would be a good idea to send a message explaining why there was a delay in your response and continue the conversation if you wish to do so. If, however, you stopped talking to him intentionally, you should consider the reasons behind it. If you're no longer interested in talking or having any connection, it might not be necessary to respond. Overall, be honest with yourself about your feelings and intentions in this situation. If you want to give the conversation another chance, go ahead and respond, but if you're not interested in pursuing it, it's okay not to reply.