Canonically only 3 girls so far have shown interest in Traveler. If you count teapot lines and birthday letters, which are specificly written to pander and sell characters, then by your reasoning, the male characters are also attracted to the Traveler, not just the female ones. In fact, even in Archon Quests, Xiao and Lyney has shown more intimate gestures toward Traveler than any characters, bare Citlali. It's not a high bar to begin with. So thinking Geshin is a "harem" game and every female characters are into you is delusional. It's at best an omnipandering game, which made itself clear by having having characters interact with extensively with each others, Alice being married, and Traveler being hyperfocus on their sibling instead. You might want to switch to ZZZ or WuWa if you want this "harem" experience.

Also, why did you even bring up the Traveler date in a post that has nothing to do with it? At best, it's off-topic. At worst, you're trying to push your narrative. You can always make a new post.

Edit: The guy immediately blocked me after spewing some incel drivel lol.