Love?

Alright so maybe I should stop saying love.... I feel as maybe I make certain persons feel bad or just not good when I say that... But when I say that I mean it, like literally I'd marry someone that I say that to. Love doesn't just mean marriage though either I'd spend the rest of my life with that person... If it was me and that person left on the earth, I would survive... I feel like nobody understands it, or really feels/ sees it the way I do... Can I be the only human being with belief in love...?