Sounds like he's immature and was doing all that on the bus more to "impress" his friends rather than to show he likes you.
You really want to be involved with someone who disrespects women so much that he posts nude photos of some girl? And I shudder to think of how they got those pictures in the first place. Most girls don't just up and say "Hey! I know. Let me take my clothes off and pose suggestively to you can take pictures. What could go wrong?"
Would you like to be the next girl that happens to?
Re Ted Bundy. People like Bundy show many signs early in their lives.
Excerpts from Wiki
Bundy occasionally exhibited disturbing behavior, even at that early age. Julia recalled awakening one day from a nap to find herself surrounded by knives from the Cowell kitchen; her three-year-old nephew was standing by the bed, smiling.
Bundy had different recollections of Tacoma when he spoke to his biographers. When he talked to Michaud and Aynesworth, he described how he roamed his neighborhood, picking through trash barrels in search of pictures of naked women. When he spoke to Polly Nelson, he explained how he perused detective magazines, crime novels, and true crime documentaries for stories that involved sexual violence, particularly when the stories were illustrated with pictures of dead or maimed bodies. In a letter to Rule, he asserted that he "never, ever read fact-detective magazines, and shuddered at the thought" that anyone would. In his conversation with Michaud, he described how he would consume large quantities of alcohol and "canvass the community" late at night in search of undraped windows where he could observe women undressing, or "whatever [else] could be seen."
Bundy also varied the accounts of his social life. He told Michaud and Aynesworth that he "chose to be alone" as an adolescent because he was unable to understand interpersonal relationships. He claimed that he had no natural sense of how to develop friendships. "I didn't know what made people want to be friends," he said. "I didn't know what underlay social interactions.
During high school, he was arrested at least twice on suspicion of burglary and auto theft. When he reached age 18, the details of the incidents were expunged from his record, which is customary in Washington.