Dealing with Disrespectful Behavior at the Poker Table

Hello everyone,

I would like to hear your opinions and feedback on a situation that recently occurred to me at the poker table. Perhaps some of you have had similar experiences or can give me tips on how to handle it better in the future, especially from experienced players.

Here is the case:

I had been sitting with the same player at the table for a long time. I usually take some time for my decisions, especially in larger pots, as I try to read the other players' tells and thoroughly analyze my hand. After about an hour, the player next to me started loudly commenting on my playing style – with groaning, head shaking, sighing, and quiet talking that I could clearly hear.

I ignored this behavior for several hours, but it increasingly disturbed me. Finally, after about five hours, in a situation with a 100 big blinds pot, I lost my temper. While I was considering re-raising and going all-in, I put on my sunglasses, to which he again called me a "nutcase." I asked him if he had a problem, which escalated the situation. He insulted me, called me an idiot, and behaved very aggressively. The floor manager intervened, and the insults stopped, but the atmosphere remained tense. I ended my session shortly after.

My questions to you:
1. Should I have addressed him at the first incident?
2. Would it have been better to continue ignoring him?
3. Should I have discreetly informed the floor manager earlier?
4. Are there other ways to professionally handle such disrespectful behavior?

I look forward to your advice and experiences.

Thank you!