According to a supply, the model and singer are "not officially back with each other" but are "continuing to talk and see exactly where issues go." And although Jenner, 20, stays "hopeful" about her rekindled romantic relationship with Types, 22, the Maintaining Up with the Kardashians star is also "getting a lot more mindful this time," adds the supply. "He is not going to settle down and she understands which is just the way he is," says the source. "She genuinely likes him, but her heart's not as invested." "They are rekindling their previous romance and Kendall's so thrilled and happy about it," stated the source. "She's always cared about Harry." The pair had been initial linked in January 2014 when they were witnessed going out to dinner and hitting the slopes at Mammoth Mountain in California.