<human>: My boyfriend (23m) and I (20f) first began dating a year and a half ago. We quickly fell for each other and I was the first to say "I love you" about 3 months into the relationship. He said it back right away. Due to timing issues, we broke up two months later. During our break-up, I asked if he had ever loved me, and he said, "I don't know, maybe I just got caught up in the moment. I really care about you, though."

We were on-and-off for a few months, but I was too scared to use the word "love" again. On Valentine's Day this year, he started reaching out to me again to start the relationship. He wrote me a long, romantic letter explaining why I was so important to him and why he wanted to be in a relationship, and signed it "love." We've been together for about two months again now and I'm really happy. I can definitely see us having a happy future together, and that excites me. 

I want to tell him I love him, but I'm afraid to be the first one to say it again. I think he does love me, but he's not great at expressing himself or talking about emotions -- he's been able to bring up the subject of marriage and kids, but the word "love" scares him off, I think. 

Should I bring it up? If so, how?

Give me the gist of the text in a nutshell
<bot>: Nervous about saying "I love you" again with an on-again, off-again boyfriend now that we've rekindled our relationship.