No I’m not thick, take a look at yourself first love.
Anyway to the OP, his sisters obviously came first to check you out so they could ‘report’ back to his mother. This is how I’ve often seen it work. It’s not always the parents that first turn up but female members of the family that start the initial process and do ‘investigation’ and then obviously involve the Father and other males when it comes down to actually asking about the rishta etc. When my friend from uni got engaged he got his sisters to meet his gf and her Mother and sisters first to see what they all thought of each other before he even got his parents involved. Before you start to despair I think you should keep in mind the fact that this guy does obviously want to marry you because if he didn’t he wouldn’t bother meeting your family or even sending any of his family members to your house. Lets be real about this no one in this day and age has the time or inclination to do ‘natak’ of just sending family around and pretending to do rishta if they are not actually serious about marriage. He obviously does want to marry you because if he didn’t he could just turn around and tell you to get lost, why would he involve his family and get them to see you?
It’s a totally different matter that his mother doesn’t approve, probably because she wanted to hand pick her daughter in law. I don’t see how any of this is his fault, if anything he is the one caught in the middle. Leave it to him to convince his Mother and if he can’t then he will either marry you without his parent’s approval or he will forget the whole thing. There is not much YOU can do, this is his choice to make. I wish you all the best, if he is in your kismat then he will be yours no matter what.
i agree with this sweet_iez55 u need to think about this carefully and don’t get blinded by the fact that his sisters came first instead of his mum n dad. if he didnt want u its much easier for him to tell u to ‘F OFF’ rather than getting family involved and making a bigger mess for himself if hes not serious. it does look like to me he’s making the effort so just let him handle his mum and convice her n i hope it all works out for u hun.