"Read more" link getting into facebook previews

Hi guys,

For some odd reason my new blog at https://www.dynamitri.pl keeps on throwing the “Read more/Comment” link into the facebook preview posts. No idea why, but it takes a few words out, then truncates the text and throws “Read/More” at the end of it, so that what appears on facebook looks sort of, like:

This is the preview of my post and some random words… Read More/Comment→

Obviously it looks silly, but I have no idea why it happens and what to do about it. Oddly enough, it doesn’t seem to pull up the “Read More/Comment” bit to fill in the word count – it keeps on truncating the post itself even if the intro is long, and there always seems to be enough of place for the “Read More” bit. It automatically truncates the text to make space for that, if necessary – if it makes sense.

Does anyone know what could I do about it, to have just the post preview on my facebook?

Many thanks!

Dynamitri