Desire needs safety
You tend to approach people sideways, testing the water and checking the mood before you make any move. It isn’t a lack of wanting. You feel a lot, and you’d like to know that you’re safe before you show it. Once you trust someone, closeness and desire tend to arrive together, and being wanted by someone who also knows you well is what really does it for you. A hurried encounter with a near stranger probably does much less.
Your drive tends to rise and fall with your feelings, too. On a day you feel secure, you can get an astonishing amount done. On a day you don’t, it’s hard to get off the sofa, and that’s a normal rhythm for this placement.
Anger that goes underground
Mars is traditionally said to be “in fall” in Cancer, because a very direct planet is in a sign that protects itself. In practice, you may avoid open conflict and feel inadequate when a situation calls for a blunt no. Then the anger comes out some other way: a sulk, a sigh, a remark that’s not quite a dig, doing the dishes very loudly. People who love you may end up feeling guilty with no clear idea why.
Your other mode shows up when someone you love is threatened. You can fight with total tenacity then, sometimes even when your person is in the wrong. That loyalty is lovely, and it’s worth checking whether it’s fair.
Try to say “I’m angry” as a plain sentence, early. You don’t have to shout, and you don’t need a perfect case. Guilt and silence may get you what you want in the short term, but they use up trust. If someone uses guilt on you as a way to control you, that’s not caring either.
If you’re close to one
Ask what’s wrong, and then ask once more. Don’t mock their moods. Reassure them with actions, and defend them in front of others. Given a safe place to say the angry thing, they tend to say it, and often it’s smaller than you both feared.