How do ik if i love him???????

i can tell he loves me.weve been datein for almost a month now nd i feel sumthin but idk.hes always there for me nd always tellin me how much i mean to him nd all that.but he says its hard to believe i love him cuz of all hes been thru with gurls.how do ik if i rly ove him? I can make him believe it but i wanna make sure i do.i like bein around him,ik im shy so maybe thats y im not sure tho.im shy wit guys.but he kinda gets like that too.but i rly wanna kno if i love him.i kinda feel the connection nd i always hope to grow up nd b a family with him.help plzz i rly need help??