Although it doesn't appear the two have spoken or made up, Bell is denying any bitterness toward his best friend.
"There are no hard feelings," Bell told PEOPLE. "I was caught off guard. I hadn't heard anything about it."
"When you're not invited to the wedding the message is clear...," Bell tweeted. "Loyalty is key...ALWAYS remember where you came from."
"True colors have come out today. Message is loud and clear. Ties are officially cut. I'll miss ya brotha," he added.
Bell also revealed that the two friends "talk all the time," which further added to his surprise at not receiving a wedding invitation, especially since his former co-star invited his Grandfathered cast mate, John Stamos, as well as Drake & Josh guest star Jason Nash.
"He's been my best friend for 18 years," Bell said. "In all honesty, we talk all the time, we've been talking. I was just expecting..."
The Nickelodeon star also didn't expect the drama to make headlines the way it did.
"That was a shock," he said. "I didn't think it would be that big of a deal. I did not realize that it was going to have such a viral effect."
Despite fan outrage toward Peck, Bell defended him.
"That's my bro you know?" he said. "It's kind of one of those things where you're fighting with him on the playground, but if someone else says something, you're like -- 'Hey, I can say that but you can't!' "
Bell continued his positive sentiments, saying he'd be open to a Drake & Josh reunion.