For some background, me (16F) and him (16M) met mid middle school before he moved. We weren't too close, until we reconnected early this school year and have been talking. I'm fully aware how hard long distance is, and I've taken that into account throughout our relationship. We have been dating for about 5 months. He grew up in not the best place, around a lot of people his age dying so I understand I'll never fully get what he's been through and how his perspective works.
A few weeks into dating, he asked if I'd move on if he died. I told him it depends. If we were married and had kids, maybe not. But if he died right now then yeah eventually. I don't feel like that takes away from my feelings for him. He was very upset. We have had many talks about it because he mentions it ever single time he gets sad. Wether it's about us or his own fear of dying young. I feel like if anything destroys us, it will be that. I've mentioned how it makes me feel to him but he just said that he can't do anything about that and he just expects that kind of commitment because hes previously dated religious people, and that he's just gonna have to accept that "I don't love him like he loves me" and I simply don't understand. I'm tired of him mentioning it. He's so good at not getting angry and talking through things and trying to see my side, but this? He just refuses. I've explained it to him in every way I possibly could.
We had a similar situation about him wanting matching tattoos in the future (he mentioned it a month into dating) and I said I wasn't sure.
Should I lie to him and say I wouldn't move on? (I doubt he'd take the answer now anyway? Am I in the wrong? If not what do I do?
TLDR: My boyfriend (16M) dating for 5 months mentions how me moving on if he dies means I don't love him like he loves me. What should I do?