Iam 32 , with 2 kids , i was divorced but now im married to a man 46yrs old .?

I have been married to my second husband last 5 months back . things were going fine initially but since last couple of months he is loosing interest in sex . initially we had lovemaking 4 to 5 times a week but now its 2 to 3 times a week. Usually we have roleplay for sometimes before going deep. Usually in roleplay i apply lubes on my hands and give him gentle strokes but he insists to go fast and hard and if I do so , he looses soon before going further, How can it be improved. Usually during roleplay too he is more with suckling breasts and sometimes he does for a longtime and even i try to move him away he holds my hands, and sometimes soon in the morning before i get from my sleep he, crawls inside my wearing gawn and starts suckling for longtime . is this really normal with him to do so , or if he does so will that effect my health. We are with massionary and doggy style and now a days he is finding them a routine or duty rather than sex. What can be the other ways for us , Is this normal among divroced couple to loose interest after few months . I need some good advise to improve my sex life and bonding with my husband ,,and any remarried couples can give their good advise , it would be more helpful.