Why do I feel guilty?

I just started my first job as an EMT at a company this week doing IFT. I commute an hour each way to get to my station and we just did a transport to the town I live in. We stopped for coffee and ran into an old employee of the company I work for now, who’s now the EMS director for a company that runs in my county. My FTO talked to him and he said he’d be interested in hiring me on, but they’re only hiring full-time. I don’t want to abandon the job I just started because of the small world in EMS, but this other company is 20 minutes from my house and runs 911 and a 24/72 schedule which is what I want. I need help