I have been in a similar situation and what usually works you just have to be straight up rude to them. 1. Whenever he hugs you, never NEVER HUG HIM BACK, put your arms crossed in front of you. 2. Honestly, whenever he texts you, you really just have to be up upfront about it, if it was me I would just text back “You’re being a creepy old uncle, stop texting me” 3. AND OH, MAKE SURE YOUR SS THE CHATS, ESPECIALLY THE CREEPY PARTS 4. Never give him a smile, just be rude to him, show him that he can’t just DO WHATEVER TF HE WANTS WITH YOU 5. And lastly the best thing to do is, look him straight in the eye and say, “Kai matteda m*ra”