The reality star, who's gearing up to celebrate her fifth wedding anniversary with husband Peter Thomas, says matrimony is no walk in the park

Credit: Mark Davis/BET/Getty

It would seem Bravo’s Real Housewives know all too well how difficult marriage can be.

Real Housewives of Atlanta star Cynthia Bailey makes no qualms about how hard life behind closed doors and in front of the cameras can be.

“Marriage is tough!” Bailey told PEOPLE while debuting her new line of Cynthia Bailey Eyewear at ex-Housewife Jill Zarin‘s 3rd Annual Luxury Luncheon in Southampton, New York, on Saturday.

Though Bailey says she and husband Peter Thomas, who joined her at the event, are excited to celebrate their fifth wedding anniversary this year, she admits the milestone didn’t come easy.

“We have our own business, we’re on a reality show together and we are husband and wife. That’s a lot of togetherness,” Bailey said with a laugh. “Sometimes you’re like ‘Wow, this is a lot!’ ”

The former model, 47, and Thomas, who wed in extravagant style on the show, recently weathered rumors of infidelity but are sticking it out for better or worse.

“[Peter]’s great. It’s been a great ride. The show has more than tested our relationship, but I think we’re good,” she said. “And hey, God forbid we don’t make it, we know we tried! We can walk away with no guilt because we know we tried it in ever way.”

RELATED VIDEO: RHOA Star Claudia Jordan: ‘People are Tired of NeNe Leakes Fighting’

Still, Bailey’s optimistic – and looking forward to a romantic anniversary getaway.

“We want to take off the whole month of December,” she said. “I want to go to the Maldives and Peter wants to do St. Barts, so maybe we’ll do both!”