This just looks all kinds of bad ...

Tristan Thompson's ex Jordan Craig, baby mama of one of his two children, is suing the baller for more money to raise their Prince and she's claiming a few pretty damning things -- 1) Tristan cheated on her during her pregnancy and 2) the stress affected her health during the term. Now Khloe's hitting back and fans who blame her for being "the other woman" in Tristan's previous relationship, saying "No way!" She said the couple had broken up before they were set up on a blind date by mutual friends.

"My truth is: I met Tristan because HE CHOSE to go on a blind date with me,” Khloe wrote on social media Tuesday. “A mutual friend set us up. After going on some dates, Tristan told me that he had an ex that was pregnant. Obviously, I was reluctant about us continuing to date or start a relationship. He had me talk with his most inner circle. He showed me physical poof [sic] (correspondence between the two) and had me on calls with his lawyers to prove his point. His best friends, business associates and even his mother told me, him and his ex were broken up before we met."

Gee, way to start off a relationship! Speaking to your boyfriend's attorneys to ask them to confirm he's single?! Come on, Khloe ...

Craig, in court documents, claims she was living an "extravagant lifestyle" with Tristan when she found out in April 2016 that she was pregnant. She claims Thompson was eager to start a family. But then Craig started seeing paparazzi pix of Tristan and Khloe together -- and everyone was aware of their dating by September 2016 so she claims BS! She said Tristan was definitely dating Khloe before the two of them broke up. And she says the stress she felt from their separation -- in such a dramatic split -- caused her to be on bed rest during the end of the pregnancy: "This brought an enormous amount of negative, unwanted attention and stress into my life, and more critically, into my pregnancy. My obstetrician ordered me to be on bed rest due to high levels of stress that eventually caused me to have serious pregnancy complications."

It remains to be seen who Craig's legal battle will turn out but obviously all the attention on it is bothering Khloe. Here's her Instagram post from yesterday. Let's just hope she's a little smarter in her next relationship ... there were red flags EVERYWHERE on this one!