Long-distance relationship KL to Penang, is it sustainable long term?

I'm on the Penang side of a similar story. LDR within Malaysia is honestly the easy-mode version, we're lucky it's just a 45-min flight or a few hours' drive/train, not another country. It's sustainable IF you both communicate and have a plan. What strained us initially was mismatched expectations, I wanted more calls, he was busy, so we agreed on realistic communication (a proper call a few nights a week, not forced hourly texting). The distance actually made us value our time together more and we grew independently too. But you MUST discuss the future: who moves, when, and are you both committed to closing the gap. If it's just 'let's see how it goes' forever, that's when it becomes delaying the inevitable. Have the honest conversation, don't drift.

My wife and I did KL-Penang LDR for almost 2 years before I finally relocated, so it can work but only with a clear end goal. The killer of LDR is uncertainty, if it's 'indefinite long distance', the strain wins eventually. What kept us going: we set a timeline, 'one of us moves within 2 years', and worked toward it. We alternated who travels so it's fair, and we made the visits count, no phones, real quality time. The AirAsia KL-Penang flights and ETS train made it manageable. Video calls daily kept us connected. The honest truth: LDR is a bridge, not a destination. If neither of you is willing to eventually move for the other, that tells you something. Talk about the endgame now, 3 months in is the right time.