Is it strange for a married guy to want to have lunch with you and walk to car each time with you after work?

there is this new married coworker who start working here he speaks my language but his English is poor so they brought him over to my department and I’m the only person he has to speak to In my language the thing is I don’t mind talking to him if I have free time but this past days his been wanting to eat lunch with me and leave home with me and talk with me a lot he hasn’t said everything inappropriate yet been normal casual conversations but I don’t think it may look pretty from the side view am I overthinking this all or this is bit weird?

Is it strange for a married guy to want to have lunch with you and walk to car each time with you after work?
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