I am writing a romantasy novel and I’m starting out with a love interest who was a previous ex. In the end, he will betray her, however I need some character flaws that leaves characters feeling uneasy about him. Any tips?

Read also:

• Scientists decipher the genetic history of 400 medieval skeletons - Earth.com
• If a person stops thinking one or two words in a second or half second means he had stopped thinking for half second?
• What sparked your interest in books and how did you develop a love for them? What are the advantages and disadvantages of being an avid reader?
• What type of narcissist cheats more and gets pleasure out of hurting you, even if they're married?
• Midlife Caffeine Intake Linked to Healthy Aging - Neuroscience News
• Why is my elder sister so mean?
• Ben & Jerry’s board denounces ‘genocide in Gaza’ in ice-cream maker’s latest salvo against Israel - The Jerusalem Post
• Parkgoers See Two Ducks Swimming Together — Then Realize One Is In Danger - The Dodo - For Animal People
• Andrew Tate or Nas Daily, who do you prefer more?
• What is the most popular song that includes the word "you"? Are there any other songs that use "you" multiple times?
• Elizabeth Hurley Strips Naked for 60th Birthday, Gushes Over Being in Love - TMZ
• What are incels doing wrong?
• Is something wrong with my discharge? So, when I masturbate, white discharge comes from my vagina, but it's not stretchy, it's pasty. It doesn't smell and I'm not itchy, so I'm sure it's not a yeast infection. Why is it pasty though?