The only difficulty I see is that your Mars' are so different from each other. That means that the way you approach what you want is very different, it also means that the way that you fight is very different. A Cancer Mars (him) will tend to hide what they want, or not even know what they want, they will walk up to it sideways (like a crab) and try to grab it, they tend to be a bit moody and get hurt and dwell on it. You (a Leo Mars) are more upfront, you would get mad, blow up and get over it. If you see something you want you romance it, make a big show " hello, I'm over here!" you figure what the hell. But it's nothing that can't be overcome, just something to notice! Glad to see the astro is still on the money!