A situationship? Well I'll not give it any Gen Z slang

I’m a 24M who met a 21F at a wedding in India. We’ve been talking for 10 months, long distance, and things started off great. But lately, she’s barely expressive-she’ll show love or call maybe once a month. I’ve always told her I value communication and clarity, but it’s always me putting in the effort, always me sharing, always me asking for more. I’ve never pushed her out of her comfort zone, but I feel drained.

Recently, I had a really tough month-family stuff, exams, everything. She never asked how I was doing or if she could help. Not a single check-in. I’m left wondering if there’s someone else, if I’m just an option, or if my biggest fear (being cheated on or treated like I don’t matter) is about to come true. She’s about to go on another trip, and honestly, I don’t know what to expect.

I’ve even introduced her to my family as the girl I love and hope to marry. I don’t want to keep feeling like I’m the only one trying.

Am I overreacting?

Should I just walk away before I get hurt?

Is this normal for someone who’s “not expressive,” or is it just not caring?

How do I protect myself in this kind of situation?

Any advice or similar experiences would really help. Thanks guys💔