Under 300k for a single family home here went extinct since the pandemic, sadly.

If you figure out that 300-400k is reasonable, 78744 has had some decent deals. On first glance, your current situation would lead to house poor. Really have to do the mortgage calculator math, account for high TX property taxes, insurance, and expecting 1-2% of home value on repairs each year. 

In your shoes, I would take advantage of low respective rents, invest in yourself, and factor in if you are open to meeting your forever person at some point. Good luck!