Basketball ain't the only love in Caitlin Clark's life ... the new WNBA star revealed Wednesday she's smitten with her boyfriend too -- droppin' an L-bomb on him in a sappy social media post.
Clark delivered the mushy message on her Instagram page to commemorate her and Connor McCaffery's 1-year anniversary ... writing, "you make everyday better."
"And I can’t wait for many more adventures together…," she added. "love you."
McCaffery returned the favorite with an emotional note on his own IG page.