Translation, just in case you find it hard to understand,
while he was doing your prashna reading, sun was going on, but then Venus came in, so he is saying since the talk is about Venus, Venus had to come in.

prashna is saying, you are interested in someone elder than you.

you can call that an interest too, you want him to speak up, but if you speak, then you will be able to complete your desire. because, the prashna says that he is interested in someone younger than him, and he is interested in those who show themselves younger than him too. he is also saying that you are mostly talking to him after you have become online friends