[Verse 1]
So, she said, "What's the problem, baby?"
What's the problem? I don't know
Well, maybe I'm in love (Love), think about it
Every time I think about it, can't stop thinking 'bout it
How much longer will it take to cure this?
Just to cure it, 'cause I can't ignore it if it's love (Love)
Makes me wanna turn around and face me
But I don't know nothin' 'bout love, uh
[Chorus]
Come on, come on, turn a little faster
Come on, come on, the world will follow after
Come on, come on, because everybody's after love
[Verse 2]
So I said, I'm a snowball runnin'
Runnin' down into the spring that's comin'
All this love meltin' under blue skies
Belting out sunlight, shimmering love
Well, baby, I surrender to this strawberry ice cream
Never-ever-ender, all this love
Well, I didn't mean to do it
But there's no escaping your love, oh
[Pre-Chorus]
These lines of lightnin' mean we're never alone
Never alone, no, no
[Chorus]
Come on, come on, move a little closer
Come on, come on, I wanna hear you whisper
Come on, come on, settle down inside my love, ohh
Come on, come on, jump a little higher
Come on, come on, if you feel a little lighter
Come on, come on, we were once upon a time in love
[Post-Chorus]
We're accidentally in love, accidentally in love
Accidentally in love, accidentally in love
Accidentally in love, accidentally in love
Accidentally in love, accidentally in love
[Bridge]
Accidentally, I'm in love, I'm in love
I'm in love, I'm in love
I'm in love, I'm in love
Accidentally, I'm in love, I'm in love
I'm in love, I'm in love
I'm in love, I'm in love
Accidentally
[Chorus]
Come on, come on (Come on), spin a little tighter
Come on, come on (Come on) and the world's a little brighter
Come on, come on (Come on), just get yourself inside her love
[Outro]
I'm in love
.
He pretty much explains it. He is in love and he cannot escape it. It’s really the opposite of a problem, as all he can think about is her, marking the beginning of what he hopes to be a long and happy relationship
Strawberry ice cream is an extra-special flavor of ice cream and might also describe something in the landscape. The act of picking a specific flavor of ice cream is a very child-like thing to do which goes along with the child-oriented view of love that the lyrics illustrate.
Before the narrator met his loved one, loneliness continuously wrapped him in sadness, like a snowball picking up snow as it rolls down a mountain. However, when he met his loved one, the loneliness and sadness that he was experiencing lessened as he spent more time with his beloved. Love and happiness replaced the negative emotions that he had, like the warm sunshine melting the cold snow.

The protagonist’s girlfriend noticed that he looks different lately. Ironically, what he’s experiencing is not a problem at all, just confusion from falling head-over-heels in love.
Lightning is generally symbolic of something ominous and foreboding but the narrator and his love are likely watching it from afar where they are not in danger and using it as an example of the wonders of nature. It’s also a shared experience that they’re creating together.