What seems more likely:
Trump doesn't shake hands with Merkel, doesn't look her in the eye because:
1. He genuinely hates all women, thinks Merkel should be making him dinner instead of running the country, also he brags about sexual assaulting women all the time
2. He talked MAD shit about her during his campaign and is embarrassed to face her now
If you're on GAF, the answers is obviously 1, he's also acting like an ISIS member, Hitler didn't like women, his fanbase will love it!