Gale and Aaron have already listed the things than "can" happen when housing two BPs together. But the one thing that is already happening is that they have gone off feed. Baby BPs ONLY "fast" if they are stressed. That snuggling you're seeing - that's them competing for space, regardless of the fact that there is a ton of room in that tank. Section the tank off and turn it into two separate enclosures, one for each snake. And get a thermostat before you burn them both.