What do you advise in this case because I'm becoming increasingly unhappy and this is my second month only at this place?
I suggest you talk directly to them, and express how you feel, but do it in a straightforward way - State facts. State how those facts make you feel. Ask for a change of behavior that would make the situation better. See what they have to say.
Anyway this is standard, most senior devs have junior people skills.
Does whoever is driving, narrate their work? Ask questions? How about the observer? Do they ask anything, respond to questions? Do they make unsolicited comments? If feedback or other input is given by the observer, does it get incorporated? If suggestions are dismissed, is there an explanation? Do the driver and observer switch roles during a session? During a day?
Etc.