So lovely that he's been great with you at your gig.
Maybe try telling him in baby steps?
"Love having you at the gig, you're support is great and you make me feel very special. You're very special to me too"
"I love spending time with you, hope you loved my band's gig?"
"Think you're a keeper as you're my favourite person"
"As we're getting on so well, how do you feel about committing to a holiday booking for next summer? I reckon we will still be bumbling along together then as we're a happy pair together?"
Lots of roundabout ways to open a conversation without such a high stakes direct declaration. These would definitely have been helpful if I'd used them with my DP. The nuclear ' option didn't make him feel special, I terrified him. It took a bloody age before he said he loved me back. Months, if not a year.
He still asserts, words are cheap, people lie and he prefers to be judged on his actions so avoids declarations. From his point of view, if he has to say it, then he's doing it wrong as I should be able to see he loves me by his actions. People are different.
To be fair, he is the most thoughtful and hard working partner in terms of day to day actions. In an early visit to my house he went to bring in my bins and saw one was very manky, I went to see what was taking so long. He was hosing it down and bleaching it. Lol. Another time he arrived with a lopper to attack my overgrown hedges. He's practical and makes me life easier by fixing stuff, often before I've even noticed that it needs sorting. On the other hand he can completely fail to notice it's my birthday even though we shared an office and colleagues cards were on my desk. He was mortified but not doing a once year grand gesture really isn't important when he's so consistently thoughtful throughout the year.
How he reacts to your big words may have little to do with you and everything to do with how he is wired, his personal past and his own family history. His actions shout to me that he thinks you're awesome already.