Speaking about his character's sudden impulse to stop April Kepner's wedding and declare his love for her on the midseason finale of Grey's Anatomy, Jesse Williams hinted that Jackson Avery will question what he got himself into.

After apologizing to Stephanie, Jackson interrupts April's wedding to Matthew to profess his love.

"April, I love you, I always have. I love everything about you. Even the things I don't like, I love. And I want you with me. I love you, and I think that you love me, too. Do you?" 

Williams explained the scene in an interview with The Hollywood Reporter and also talked about where things will go for April and Jackson when the ABC series returns in February. During the discussion, the actor made it seem like Jackson may soon doubt his actions at the wedding.

"You'll see it came as a huge surprise for Jackson, and that it wasn't premeditated. It was just a compulsion to blurt it out. Sometimes when you act impulsively, you have a 'WTF did I just do' moment, and we're going to see that," he said. "I can't say what April's response is going to be, but I can say that Jackson is going to have a, 'Oh my God, what have I gotten myself into?' moment at some stage in the very near future."

There were so many moments for the former couple to get back together, but seeing April about to marry someone else was a turning point for Jackson. Williams explained the attraction between the characters by first saying, "It didn't make sense on paper: it's not healthy; they shouldn't be together."

"But when they're in the same room," he added, "chemistry is chemistry, desire is desire and nobody understands the other person better than Jackson and April do."

Where do Jackson and April go from here? 

"[That's] what they have to figure out," Williams explained. "Do you want to go to lunch with me? Do we want to date again? Do you want to start the courtship process from scratch? Do we want to pick up where we left off? Do we want to get married ourselves?"

"There's a million ways for it to go, but what it does shine a light on is what constitutes the metrics of love and an established relationship," he added. "Jackson and April have never been a couple...They were just two people sleeping together and people probably viewed it as a lusty, trivial thing, when I would suggest there's as much chemistry between those two characters as any on the show."

Grey's Anatomy returns for the second half of season 10 on Thursday, Feb. 27 on ABC.