Dumb questions, but please no judgement

Ok I am probably over reacting, but i am horrible with relationship problems. I don't have many friends/people to ask, or talk to about these types of problems.....

My boyfriend and I had woke up and went to the store and got breakfast to cook, and we ate food an started watching movies. Well he kept pressuring me to have sex with him, and I told him I would later on cause i had just got off work like 8 hours before. So in other words I felt gross and nasty, and he said he didn't care that I hadn't showered he just wanted to get off real quick. Then, he proceeds to say we can have sex again later if you want since I just want/need to cum now.

Im just curious if all sexual relationships are like this or if in relationships if your supposed to care if both sides are pleasured or if is normal for just one person to be pleasured?

Which in my mind i felt degraded and like i was being used as a piece of ass instead of a girlfriend. (We've been together since 2014).

Am i over thinking, or being over sensitive about this?

And apologies for how I worded it, I just said it the way it was said to me. But I really need advice because its stressing me out, and I dont know how to feel about this situation.😣😑😔😓