I'm assuming this relationship is with your Father...
Well, they can be difficult people to deal with generally, but I see conflict with the Ascendant signs... they square each other... maybe not precisely but Capricorn and Aries are two very different energies.
The Leo Sun energy is also... Hm... MY wording? Against the Scorpionic one.
This person is thoroughly Scorpionic and, coming from someone with Scorpio-Rising conjuct Pluto, we tend to want to manipulate and control things. That's just how Scorpio people are and if this is a parent or parent-like figure, they may feel ENTITLED to do so.
Your Chiron almost directly opposes theirs, which I find interesting, but I couldn't explain what it means, if anything.
Now are you this person's progeny? The age difference would seem to say so. This is something you just need to deal with, tough advice, but some people don't want to change.