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On old vines it is common for wood areas of the vine to stop putting out shoots.
Creeping Virginia is fast growing and does well with regular pruning.

https://www.gardeningknowhow.com/ornamental/vines/virginia-creeper/virginia-creeper-maintenance.htm

This article will help you.
https://www.gardeningknowhow.com/ornamental/vines/virginia-creeper/virginia-creeper-control.htm

Virginia creeper does not have suckers that dig into the pine for moisture. How long ago did you cut it? Maybe there is another stem or a second type of vine climbing the tree. If the vine stem looks "hairy", as you say, it may be poison ivy and those hairs are air roots. The base of a large PI vine looks a lot like a tree trunk so is camouflaged. At the bottom of the article in this link, there is a photo of poison ivy hiding among Virginia creeper. This is a fairly common occurrence. https://wimastergardener.org/article/virginia-creeper-parthenocissus-quinquefolia/ When a vine is in a tree it is best to let it completely dry out after cutting and start to fall on its own before gently tugging on it to bring it down.

I would fertilize with fish emulsion and add some compost to the soil. Give the vine more time, winter was very hard on many plants this year. I had given up on my Star Showers Virginia Creeper this year, but suddenly starting sending up some shoots and leaves. I'm zone 4.

The plant attaches itself to the wall surface by tendrils, which might not appear to do much harm, but this is followed by roots, which can grow from the stem at any height and burrow into the mortar joints, pushing the bricks apart. The plant also seems to have the ability to break down and digest timber window frames and fascia boards.
So the answer is yes, Creeping Virginia can do damage to your home.

This sounds like shothole fungus, from the description. This will be made worse by watering more. In fact, this is usually the cause of the illness.

I recommend applying wettable sulfur and dolomitic lime to kill off the infection, and repair the pH of the soil.

Only water when the soil is almost completely dry, or really just during dry spells.

This article will give you more information on the care of these: https://www.gardeningknowhow.com/ornamental/vines/virginia-creeper/virginia-creeper-maintenance.htm