TN private life, the wild Irish Romeo usually dates these types. He hasn't much time for off-screen twosoming, what with studio work, his senior year in high school, rehearsing his orchestra, and keeping up with sports. But when he does step out, he doesn't like too adult a companion. Of Jacqueline Laurent, the young French actress who appeared in one picture with him, he said, "She's too sophisticated for me. It killed me, the gossip columns saying w were going together. "Do I get kidded about these parts? Oh, yes, many times. But I don't really pay any attention to it."