Headphones and home button conundrum (after water damage)

Situation: iPhone SE was in water for about 2 seconds (dropped out of shirt pocket into shallow bucket of non-detergent soapy water). Continued to function, with just water visible under screen, but let it dry for two days just to be sure.

No “water damage” sensors appear to have been triggered. Works fine. EXCEPT:

Always thinks headphones are in. Then when I actually do plug headphones in, it thinks I’m activating SIRI (or maybe it thinks I’m holding down the Home button). Turned off SIRI, and first few times I plugged in headphones, asked if I wanted to turn SIRI on. Stopped after a few times. Now I can:

- Hear and speak using headphones, but Home button does not respond with headphones in.

-Hear and speak on speakerphone no problem.

-Use bluetooth no problem.

So all the hardware seems to be working, speakers are all working, phone just seems to think headphones are always in, and something in the headphone jack (the little round sensors?) are equating with the Home button.

Any ideas? I’ve followed all of the normal “get out of headphone mode” advice (power off, bluetooth, change settings, etc.). It seems like it’s def a hardware issue, but MAYBE I can sort it out without having to replace the headphone jack … that would be nice!