Standing by her man.

J.Lo is head over heels in love with A-Rod, and she's not letting his former mistress Lauren Hunter's claims he's a dirty dog who cheats get to her, People reports.

“Jennifer knows what’s going on. Alex has been very honest. She doesn’t believe he has gone behind her back since they started dating. They both have a past. Jennifer is focused on now and her future with Alex. She isn’t going to let someone from Alex’s past ruin what she has with him,” a source dished to the outlet.

“They are one big, happy family and that will continue. Jennifer has never felt more loved and taken care of than with Alex. He is her biggest fan. He supports and encourages her every day. She has nothing but amazing things to say about him," the source added.

Regardless whether or not the reports are true, Jenny from the Block is reportedly "blinded by love" and not likely to let anything come between them.

“Jennifer is completely delusional right now. She reached out to her friends after the news of Alex and his mistress broke, but she wasn’t reaching out to ask for advice. Instead, she wanted to make sure to tell all of her friends not to believe any of the stories that they are reading right now!” another source revealed to Radar.

We're all about trusting your gut, we hope she doesn't get her heart broken!