How to understand love?

It was 3 months ago when I starting talking to this guy through a chat app. It was good conversations (normal) for the first few weeks and then he began to have feelings for me a little. He confessed that he liked me and told me most of his life and stuff throughout the months. I felt that I trusted him and gotten to know him a lot better. We have messaged almost everyday, sometimes calling each other. The thing is that, I've never had a relationship before. I'm much of an outsider I guess. I don't talk to guys that often.. mostly girls you know. I'm a college student by the way, virgin. He is not a virgin and he's like 2 years older than me. Anyway, I have never experienced loving someone so deeply and intimately. So for a couple of weeks now, he says that he really likes me and usually says he loves me too. At first, I resisted the temptation of getting attached because of my life right now, but every time he talks to me, I kind of developed feelings for him too. He seems to be getting serious since he told some people and I haven't.. is this what love is? I mean, has anyone experienced this? I really like him and I just want my soulmate to be like the first and last guy you know? Thanks for reading though!