Seeking Advice on a Delicate Situation Regarding a Muslim Colleague

Salam everyone, I'm a non-Muslim woman who has developed feelings for a Muslim man I've worked closely with for about four years. We were on the same team, sat near each other, shared lunch almost daily, and built a warm, comfortable friendship. Over time, I started to care for him deeply-he's genuinely kind, smart, supportive, and his character made me interested in learning more about Islam, which I've been slowly exploring. There were moments where I wondered if he might feel similarly, but I know I could be misreading things. I understand that faith often guides such decisions, so I've kept my feelings to myself. Recently, a new colleague joined who shares some common ground with him, like actively supporting the Muslim community and speaking Urdu. I've noticed he's been engaging with her more and has become a bit distant during our lunches and work interactions. Nothing has been said openly, so maybe I'm overthinking, but it feels like something has changed. This has been tough to process. While I realize it might be simpler for him to consider someone who shares closer cultural or religious ties, I can't ignore my emotions, and I don't want to lose the meaningful connection we have. I've been trying to learn about Islam and related topics to better understand his world. I'd really appreciate advice, especially from Muslim brothers who might understand his perspective or sisters who have faced similar situations. JazakAllah for your help.