The supermodel, who was spotted getting close to her former bodyguard Martin Kristen, has claimed that their marriage broke down on its own, the People magazine reported.
"Our separation was based on issues between the two of us, Klum, 39 said.
Pointing out Seal's holiday with a bikini woman soon after their split, Klum said, "Seal has moved on and so have I."
The former couple, who raise four children together, had separated amicably but as they are headed for a divorce things are getting ugly with them.
Klum is positive despite Seal's accusations.
"I cherish all of the great memories Seal and I created together over the years. My priority has and continues to be protecting and providing for our children."
Seal, 49, had slammed Klum for cosying up to her bodyguard Martin Kristen on a family vacation in Sardinia.
"Whilst I didn't expect anything better from him, I would have thought that Heidi would have shown a little more class and at least waited until we separated first before deciding to fornicate with the help. I guess you now all have the answer that you've been looking for for the past seven months."
The British singer, however, backtracked, claiming he had not meant to accuse Heidi of cheating.
His representative said that Seal "was not implying his wife was cheating while they were together, but he was merely pointing out that their separation and divorce were not final and they are still legally married."
