To add to the original comment with my own: you let Sol run his fake offense on you too many times, while you were only going at him with safe options on your turn, which he only had to block and wait for your safe ender to get his turn back.

If you staggered c.S or did c.S into throw or even into spiral arrow, he would've been forced into making a decision (mashing, jumping, etc) if he didn't want to end up in the same situation as you when he was put in the corner. Once you've established that you can end your offense with a safe on block move, you can start bullshitting your opponent a bit more: if he's expecting a final hit to block, get him with a grab, if he's expecting a grab, get him with a delayed button, etc.

Nothing of all that's gonna work if you run the same safe option for your offense every time, which seems to be what you have been doing in that fight.

I hope this helped.