My (18F) boyfriend (19M) of two years wants to break up, but only after all the holidays are over and I graduate college

My boyfriend has been begging me to go to the beach with him, and I'm not really into it, but he's promised to only go for three days and to stay in a super cheap Airbnb, so that's what we'll be doing. But I don't feel like getting off work to go on a trip I don't even want to go on, so I told him so. He suggested we go to my parents' house and stay there for a month or so to get some space, but I don't think we're ready for that. He said he couldn't stay with his parents because he lives with his dad and his dads' new wife and their baby, and he said he couldn't stay there with her around. I was confused so I asked him to explain, and he told me that his dad's new wife used to be his girlfriend right before he started dating me, and that she's the reason we broke up in the first place. When he and I were still dating, he was cheating on me with her. He said she's his dads' new wife now, and that she has a baby, about a year old, and he said he thinks it's his baby. I asked him why he thinks that, and he said he knows that I never slept with him while we were together, and that she was about 8 months pregnant when they got married, and so he said he's positive it's his. I asked him why he never told me about it, and he said he didn't want to hurt me. I told him I'm not hurt, and he looked at me weird and said "really? You're okay with this?" and I said I wasn't okay with his lies, but that I was okay that we weren't together anymore. He looked at me for a long time, then finally said "I don't want to be with you anymore." I asked him why he was still with me, and he said he had too many commitments and that he wanted to wait until after the holidays and my graduation to break up, because he already promised me we'd spend Christmas together and that he'd come to my graduation, and he wanted to follow through on his promises. I asked him what he wanted to do about where he'd live, and he said maybe he could go stay with his moms' side of the family until he got his own place. I told him that was fine and that I'd drive him there, but he said no, he'd rather wait until after everything was over like he said before. I agreed and we haven't talked about it since.<br><br>**TL;DR! My boyfriend who I've been with for two years told me that he wanted to breakup, but he wanted to wait until after Christmas and my college graduation because he already promised me we'd spend Christmas together and he'd come to my graduation and wanted to follow through on his promises.**