thank you for the translations !
Why would he jump to the conclusion that she might be able to see the future, What if she over heard kanon talking about meeting Roy in the forest ?
And since she knows the heroine is going for harem now why not do the event before Kanon gets there Even when she saw him sitting under the tree, if she went and talked with him that wouldn't have hurt anything, and if kanon shows up who cares you've already started the event what can she do.