Does the G.O.P deserve the votes of veterans and active duty military?

You can always find examples of individual bills and individual votes that go one direction or other, and you shouldn't take them to be indicators of how you view the parties from a broader perspective. No party "deserves" anyone's votes. If you talk about higher-level issues, then you can start to paint a picture of which party is more aligned with your principles and priorities in various areas. Also, when you look at one particular bill, as with your examples, you don't know all the intricacies involved. Perhaps the Republicans who aren't voting for it are waiting for a better version of the bill. Perhaps the bill has aspects that you're not hearing about that are detrimental to the best interests of veterans. There are a million possibilities and it's likely you don't know about all of them, so you really can't make any sweeping judgments of the parties on the basis of this one bill.