“Sorry, I can't help but get sucked in when there's a game on.”

You're out at a bar on a date. There's a TV in the bar, with a soccer game on. You're trying to pay attention to your date, but you keep looking at the TV. You say:

Sorry, I can't help but get sucked in when there's a game on.

Sorry

In the situation describe above, "Sorry" is probably not a strong enough apology. He should say something like:

I'm so sorry. Please, please forgive me.

(someone) can't help but (do something)

Use this phrase to talk about something that you can't control.

A common word to follow "can't help but" is "wonder". This expresses something that really makes you curious:

I can't help but wonder what my life would have been like if I'd gone to college in the U.S. 

(someone) gets sucked in(to something)

When something completely takes all of a person's attention, you can say that that person has been "sucked into" it. For example, you might get sucked into:

• a really addictive crime novel
• a long and complicated video game
• an exciting but very competitive industry, like the entertainment industry
• news about a famous murder trial

Another meaning of "sucked in" is to be fooled by someone's lies and false promises:

Don't get sucked in by credit cards offering free airline miles or other perks.

Being "sucked into" something is usually negative, whether it's used with the first or second meaning.

there's a game on

Saying that "there's a game on" means that there's a sports game being shown on TV:

A: Honey, do you want to go out shopping this afternoon?

B: Not today. There's a game on.