Most Helpful Guy
Yes, it is indeed a disaster in the making, irrespective of whatever justifications you may want to give. Also, it's pretty obvious you still feel for your ex. Make a choice. Either stay with your current boyfriend, or break up with him to be with your ex. No middle path here, like you are trying to follow.
Most Helpful Girl
Your boyfriend is right
Your ex obviously wants sex and you are completely clueless to it
If you have any self respect you wouldn't meet up with this guy after he drunk texted you