He finally told me he loved me...but

Hasn't said it since?

My bf and I have been together for 7.5mths. He's amazing and I am in love with him. I didn't tell him out of fear. Well, the other night, he said he loved me in passing (we were goofing around and he said something sarcastically mean, so I said "jackass" and he's like, I love you). He's like....wow I've said that a few times now. I asked him if he actually did, and without missing a beat, said yes I love you! So I told him how I felt as well.

This was 2 days ago, and he hasn't said it since.

I don't need to be reassured every 5min, but hearing it is nice