I feel very sad. I just confirmed again that husband has another separate facebook account with an alias plus I believe he blocked my account. He PM other women with "those" messages. I don't feel like letting him touch me or call me "Sayang", "Dear".. Is it okay? I avoided him, don't let him touch me and throw a big tantrum.. and he ask me, "What wrong i did again?" I feel like marriage is just a contract.

Hugs if you have children & still love your husband it will be helpful for the both of you to go for Counselling session. It might be easier for your husband to tell an outsider why did he resort to such behaviour. The counsellor should be able to identify & correct the behaviour that is not appropriate in the marriage. Sometimes, it's more easier for an outsider to identify the problems & propose solutions that can salvage the marriage.