You can only Ideally feed it to 85 (Feed at 75 hunger to get it to 85) if you feed at 76 or above you lose intimacy. Which would warrant at the most of 84 minutes of AFKing without losing intimacy. What you could do is set up a timer to go off at 80 minute intervals. When it goes off, feed your homun and reset it. That's the best advice I can give you Gravity