No Spark in Marriage

29F, Got married last year in joint family. Initial few months were good but soon started having arguments with MIL. When I tell the situation to my husband, he only tells me to become mature and ignore his mother's words. I was ok with it as my relationship with my husband was good. But now, he spends most of his time with his mom after coming from office while I wait for him in bedroom. And even when he comes, he shows no interest in any form of intimacy and kinda ignores my talk and only says what his mother probably tells him. I don't know how to proceed further and tackle this situation and bring back that spark in marriage again like initial months.