You're a fairly new member, so let me give you a little background on myself before I respond to your post. I started out as a very severe Domme and as the years went by with my husband I became a switch with him, I also switch with a couple of women I play with and am a Domme to a few men at S&M parties. The only man I will submit to is my husband. You can check my profile to see exactly where I'm coming from in my answer. Don't take this the wrong way, but you are young, inexperienced and will have many future sex partners, lovers, tops, masters and people you love and trust to one degree or another. I am a straight shooter and will give honest evaluations and tough love. You don't have to pay any attention to what I have to say to you if you don't want to. I only care if you do.
https://en.zity.biz/index.php?mx=member;u=1927
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1---First, I am sorry to have to say this, but an online relationship really does not count for much and four months is not a long time.
2---Communication is the basis for any long term relationship.
Some "Masters" "Tops" or "Doms" really think they genuinely own you and run your life. Thats bullshit. Do not fall for that crap. That also goes for Masters who think they own you because you are their "collared submissive." When a problem arises in a relationship, you have to step out of your role and get real to solve it. It's only an ignorant master who will try to "punish" you by ignoring you when this sort of problem arises.
He sounds like an immature person who thinks he can stay "en role" all the time, and the only way those "pseudo/fake/wannabe masters" can get away with their act is with a weak-minded, ego-less submissive. DO NOT BE ONE OF THOSE. Being a submissive is a valuable commodity. Many masters/doms/whatever think they run the show, but they do not. Without the submissive partners those masters would be nothing. Do not allow them to take advantage of you.
Don't let them ignore you by not communicating, especially if there has been an argument or if a problem has arisen between you. I don't care how much work he has to do. He can find some time to communicate with you. If he can't do that, you were never a perfect match. Get rid of him and put your efforts into finding a man who will respect you for what you have to offer.