Techniques and products and behaviors that work well on straight hair can be disasterous for curly hair.
The thinning that hairdressers do can sometimes damage the hair and make it more frizzy. Ideally, you want each chunk of group of hair to end at the same length, so they can form a lock. So for example, I let the damaged broken hair grow out, make sure my nutrition is good so I’m growing good hair, and then asked for a couple of simple layers to cut it off and bring all the ends mostly even with each other. No texturing. Long hair is compatible with curls. Don’t go for short haircuts.
Silky is achievable. Silky is a goal. Set your sights on silky. It takes technique and skill and time, but is worthwhile to persue. It can be a sign that your health and diet is right.
Pay attention to what breaks the hair (making the ends uneven): aggressive dry brushing, certain uncovered elastic bands that are too tight, etc. These damaging things are forbidden.
Quick instructions for a fast result:
Comb out gently with wide toothed comb when hair is wet and well lubricated with conditioner. Dont towel dry, but gently squeeze out the water with your fist or a twist. Try not to disrupt the grouping of the hair. Allow to dry but not completely, until still damp. Add a product that’s meant for curly hair with a bit of hold. (Put an appropriate amount in palm, rub your hands together and run your fingers with product through the hair to spread it out) Twist a chunk around your finger and pull downward/outwards to lock. Not a tedious process, you can do large chunks at a time. Air dry or gentle blow drying with a diffuser attachment if you’re in a rush. Or just put it in a t-shirt turban and go to bed.
It’s addictive. Soon you’ll be buying satin pillowcases. ;)
Edit: holy f’ing shit ignore the f’er that’s telling you to clip off your hair entirely. That’s the wrong advice. Don’t do it man. Your hair is good. It takes years for some people to get it that long.
There’s the whole ‘broken trust’ aspect, from the financial stuff. People don’t want to have sex with spmeone they can’t trust. Maybe she is also exhausted from working and taking care of your four children. Perhaps taking some load off of her by helping out more around the house would decrease the stress levels and make her more likely to be in the mood.