You better let me tell you
The singer wants to convey something important

You know some time ago our pathways parted
The singer is referring to a past relationship that ended

Now you may have found bliss
The singer assumes that his former partner has moved on and found happiness

But I found regret
The singer admits to feeling regret over the way things ended

Maybe you can smile, maybe even laugh
The singer acknowledges that his former partner may seem happy now

Yeah, but all the while, I'm trying to forget
Despite this, the singer is still struggling to forget about the past

Tears cannot express my grief nor words my loneliness
The singer is saying that his pain is so great that words and tears cannot convey it adequately

For they can only tell apart
Words and tears can only communicate part of what the singer is feeling

Let my heart tell you the rest
The singer wants to communicate the full extent of his emotions and feelings

I would season every day of my life with you
The singer would do everything in his power to make his former partner happy if they were still together

I would show you just what it means to be true, girl
The singer is emphasizing that he would be a faithful partner if given the chance

'Cause after love has come and gone, baby, I'm the lonely one
The singer is expressing that even after the relationship has ended, he is still alone and unhappy

But why should a man be lonely when he had someone like you
The singer is wondering why he is still alone when he had such a wonderful partner in the past

How can I make you believe that I got to have you, baby
The singer is expressing to his former partner that he still feels strongly about them

I would sweeten every hour of my day with you
The singer would make every moment with his partner feel special and enjoyable

I would give you all the things a good lady would need
The singer is emphasizing that he would be a good partner who would take care of his loved one's needs

For you, I'd save up all of my time, give you every dime
The singer is willing to go to great lengths to make his former partner happy

'Cause after love has come and gone, baby, I'm the lonely one
The singer reiterates that he is still alone and unhappy without his former partner

I got to travel alone down life's highway
The singer is expressing that he now has to move forward in life without his former partner

Searching faces, some old, some new
The singer is trying to find someone new to share his life with

Seeking someone whom I need the most
The singer is looking for a partner who he feels a deep emotional connection with

I know there can't be two
The singer understands that he can't be with two people at once and needs to make a choice

Yeah, I'm searching for someone who's the closest thing to you
The singer is expressing that he is hoping to find someone who reminds him of his former partner

Gotta go on, gotta go on
The singer is expressing that he needs to keep moving forward in life, even if it is difficult

I'm so lonely, I gotta go, I'm so lonely, gotta go, yeah...
The singer is expressing that he is lonely and needs to move on in life