Okay, coming from someone who is married to a military man (We got married long before he joined) I can honestly say yeah, benefits are awesome and I honestly don't see why you're mad at her for wanting the benefits. I don't think that's the ONLY reason she married him, but yeah I can see why it would be one reason to marry him. Girlfriends are pretty nonexistent in the military. They don't get anything, zip nada nothing. So by marrying him she's entitled to protection for her and her son, and she gets to be with him wherever he gets stationed. I think she really does love him though, I just watched the after show and I think they're a great couple, I can see the love there. Kailyn really gets on my nerves though, hah.
ETA: Also, to the post who said Javi is too nice for her, would you rather her be with a douchebag? I think it's great, she has a temper, and he is calm, cool, and collected and can calm her down. They help each other in the relationship. Me and my husband are a lot alike in many ways which in turn makes us clash more. Idk, I think they kind of cancel each other out if you get what I mean.