AceShowbiz -

Alex Rodriguez is definitely getting serious with Jennifer Lopez. After spending Easter holiday with J.Lo and "blending" their families, A-Rod feels really happy with their relationship.

A source close to Alex tells Gossip Cop that he and Jennifer are "moving in the right direction." The source claims that their romance was just "fun" and "exciting" at first, but has progressed into a "comfortable" relationship. The fact that they have spent time with each other's children also made them feel closer.

The website reports that despite having superstar statuses, both of them like to keep things "simple." An insider says, "They exercise together when they can, they share meals with their families and they support each other's work, sometimes even accompanying the other to business commitments." Alex recently attended Jennifer's concert in Domincan Republic prior to their family holiday in the Caribbean island. "It's just normal and comfortable," the insider adds.

After their private family vacation, the two decided to have a romantic candlelit dinner in Miami on April 21. "Alex and Jennifer have been to Casa Tua before, they love the restaurant and it's one of their favorite date spots," a source shared. "They like how laid back it is and how they are left alone and not hassled by anyone - they can just be a regular couple and not be bothered. It's a home away from home." The source revealed that they had a good time, looking very happy and relaxed.

A-Rod was said to be treating the "I'm Into You" hitmaker "like a princess" and left a $200 tip. "Alex was the perfect gentleman too, he stood up when Jennifer went to the ladies room, and he even held her chair out for her when she returned. They were both super friendly and Alex left a $200 tip," the source said. Rumor has it, they're planning to get married later this year, but none of them has said anything regarding the claims.