He is married. Am I overthinking or is he crossing boundaries?

Hi, I need honest outside perspectives because I’m emotionally confused and don’t trust my judgment right now.

I am ‘25 F’. He is ‘34 M’ Married with one kid. Our families are very close and neighbours. Culturally, I address him as “bhaiya” (like an older brother figure).

However, for the past 2 years, there have been repeated interactions that feel uncomfortable and possibly flirtatious.

He once said jokingly in poetic style, “You broke my heart, now give me an extra marital affair too.

Recently my sister told he is flirting with you don’t you get it. I asked my sister why she thinks that? She said she feels “weird and creepy vibes” from him and gave specific examples:

1. He stares at you repeatedly and smiles in a way that doesn’t feel normal.

2. The way he talks to you feels different from how he talks to others.

3. He said that he would perform and sing songs only on your birthday and not for anyone else, while his wife was right there staring at him.

4. During a mehendi (Henna) function, he asked you to show my mehendi and complimented even though his wife was sitting there applying mehendi herself (he could have easily asked her).

5. In the car, you always sat in the front seat sand his wife sit in the back (though that may have been her choice).

6. During a function, he asked me “When are you coming downstairs? She must be looking very beautiful.

7. He makes double meaning jokes in front of you. His wife was staring at him when he did this.

If I say something teasingly, he reacts dramatically like “Fine, I won’t eat then.”

Sometimes emotionally intense, sometimes distant. Sometimes he is too affectionate, sometimes too cold. That hurt more than I expected. I am so confused.

In 2024, my father also warned me to maintain distance so no one misunderstands anything.

I’ll also admit something important about myself, during a serious health scare in my life, he cried a lot and showed strong emotion. That deeply affected me and probably created emotional attachment on my side. I never given any Romantic hints.

I DO NOT want to break anyone’s marriage. I genuinely like his wife and feel guilty even feeling confused about this situation.

Please give honest perspectives & what should I do?