relationship talk help me please

Sara • I'm 19😘 Taken❤️Proud Aunt of one since April 6th 2016❤
So my boyfriend would always tell me he loves me too when I would say "i love you" 
yesterday I get super mad at him and went off because he ditched me for a second day in a roll and lied to me about where he was, I knew he lied because he Facetimed me and he was at home then around midnight he was where he said he was going. We talked and stuff everything seemed back to normal but when I said I love you he didn't say it back just looked at my message and didn't say anything back.
Today he ditched me again. Three days in a row. I said I love you he looked at it didn't say anything again. 
What does it mean? Please help.