I don’t know if this is what true love does to you

I don’t know if this is what true love does to you.
8 months ago, I started working in a new place and my boss and I fell in love. It was love at first sight. We went so strong that we didn’t care what anyone thought. The two clauses were religion and marital status, he is married.
In 3 months we have done things that would probably take others 3 years to achieve, except sex. We never had sex and we didn’t see the need to.
If there is one thing I have always wanted in a relationship it would be the strong spirit of communication, on the other hand he is reserved. Its a 70:30 ratio.
There is this thing that happens to me when we quarrel. It automatically makes me weak, I cant eat, I cry all through, I sometimes find it hard to sleep. It gives me heartache. When there is an issue, I always end up on bad side. If he is wrong and I try to put it to him, in the process of doing that he would pick some words to use against me. If I am on the wrong side as well. I would apologise and it sometimes take 2 days or more for things to get back on track. I have a lot of examples but I would make use of this last one.
I was robbed last week Tuesday in my house and in addition to that I am 12 days late for my period, I am not blaming my actions on anything but the trauma of the robbery and hormonal imbalance affected me. He complained to me 2 days ago that I have been acting cranky for the past one week and pick at every little thing. I was sad about this and told him the possible reasons. I also said it could be my emotions getting over me. I said I would watch it and make amends
I didn’t not want to believe my actions were towards him alone.
Now he said he is not angry with me but we have not been cool for 2 days. I have begged and begged and I don’t even know what else to do. Now he said I made him think twice because he has sacrificed a lot for me, fought people because of me and so on. I am not disputing but I think thats what love requires, making sacrifices and I also don’t think we have to talk about things that we have done for each other.
I don’t know how else to apologise to him, don’t know how to act and this is how it happens when we have disagreement, after apologising he would say he is not angry but he still wouldn’t act like we are cool or make me feel that everything is fine.
I agree that I could be the wrong sometimes but for how long do we have to beg each other, because in situations like this i can’t help myself. I feel so down and I can’t even look away. My mind is always there
Please what do I do. Dont judge that I am dating a married man. Not there for his money or anything, I found love and can’t help it
I am 22 and he is 37